diff --git a/trytond/CHANGELOG b/trytond/CHANGELOG
index 85e0478e70..076a31cac6 100644
--- a/trytond/CHANGELOG
+++ b/trytond/CHANGELOG
@@ -1,3 +1,5 @@
+* Rename ir.model.field 'field_description' into 'string'
+* Replace docstring of models by __string__
 * Rename ir.model 'name' field into 'string' and 'model' into 'name'
 
 Version 7.4.0 - 2024-11-04
diff --git a/trytond/trytond/backend/postgresql/init.sql b/trytond/trytond/backend/postgresql/init.sql
index d815fda1a5..bb1bf18cb7 100644
--- a/trytond/trytond/backend/postgresql/init.sql
+++ b/trytond/trytond/backend/postgresql/init.sql
@@ -24,7 +24,7 @@ CREATE TABLE ir_model_field (
     model VARCHAR NOT NULL,
     name VARCHAR NOT NULL,
     relation VARCHAR,
-    field_description VARCHAR,
+    string VARCHAR,
     ttype VARCHAR,
     help TEXT,
     module VARCHAR,
diff --git a/trytond/trytond/backend/sqlite/init.sql b/trytond/trytond/backend/sqlite/init.sql
index 53ae77d989..d45462f5a3 100644
--- a/trytond/trytond/backend/sqlite/init.sql
+++ b/trytond/trytond/backend/sqlite/init.sql
@@ -25,7 +25,7 @@ CREATE TABLE ir_model_field (
     model VARCHAR,
     name VARCHAR,
     relation VARCHAR,
-    field_description VARCHAR,
+    string VARCHAR,
     ttype VARCHAR,
     help TEXT,
     module VARCHAR,
diff --git a/trytond/trytond/ir/model.py b/trytond/trytond/ir/model.py
index f5c9f454b7..4d516b971c 100644
--- a/trytond/trytond/ir/model.py
+++ b/trytond/trytond/ir/model.py
@@ -248,6 +248,7 @@ class ModelField(
         ModelSQL, ModelView):
     "Model field"
     __name__ = 'ir.model.field'
+    _rec_name = 'string'
     name = fields.Char('Name', required=True,
         states={
             'readonly': Bool(Eval('module')),
@@ -263,12 +264,12 @@ class ModelField(
         states={
             'readonly': Bool(Eval('module')),
             })
-    field_description = fields.Char('Field Description', translate=True,
+    string = fields.Char(
+        "String", translate=True,
         loading='lazy',
         states={
             'readonly': Bool(Eval('module')),
-            },
-        depends=['module'])
+            })
     ttype = fields.Char('Field Type',
         states={
             'readonly': Bool(Eval('module')),
@@ -323,6 +324,9 @@ class ModelField(
                     where=table._temp_model == model.id))
             table_h.drop_column('_temp_model')
 
+        # Migration from 7.4: rename field_description into string
+        table_h.column_rename('field_description', 'string')
+
         super().__register__(module)
 
     @classmethod
@@ -335,7 +339,7 @@ class ModelField(
             .select(
                 ir_model_field.id.as_('id'),
                 ir_model_field.name.as_('name'),
-                ir_model_field.field_description.as_('field_description'),
+                ir_model_field.string.as_('string'),
                 ir_model_field.ttype.as_('ttype'),
                 ir_model_field.relation.as_('relation'),
                 ir_model_field.module.as_('module'),
@@ -357,7 +361,7 @@ class ModelField(
                 cursor.execute(*ir_model_field.insert([
                             ir_model_field.model,
                             ir_model_field.name,
-                            ir_model_field.field_description,
+                            ir_model_field.string,
                             ir_model_field.ttype,
                             ir_model_field.relation,
                             ir_model_field.help,
@@ -373,13 +377,13 @@ class ModelField(
                                 module_name,
                                 access,
                                 ]]))
-            elif (model_fields[field_name]['field_description'] != field.string
+            elif (model_fields[field_name]['string'] != field.string
                     or model_fields[field_name]['ttype'] != field._type
                     or model_fields[field_name]['relation'] != relation
                     or model_fields[field_name]['help'] != field.help
                     or model_fields[field_name]['access'] != access):
                 cursor.execute(*ir_model_field.update([
-                            ir_model_field.field_description,
+                            ir_model_field.string,
                             ir_model_field.ttype,
                             ir_model_field.relation,
                             ir_model_field.help,
@@ -417,17 +421,9 @@ class ModelField(
                         "could not delete field: %s.%s", model, field,
                         exc_info=True)
 
-    @staticmethod
-    def default_name():
-        return 'No Name'
-
-    @staticmethod
-    def default_field_description():
-        return 'No description available'
-
     def get_rec_name(self, name):
-        if self.field_description:
-            return '%s (%s)' % (self.field_description, self.name)
+        if self.string:
+            return '%s (%s)' % (self.string, self.name)
         else:
             return self.name
 
@@ -438,7 +434,7 @@ class ModelField(
         else:
             bool_op = 'OR'
         return [bool_op,
-            ('field_description',) + tuple(clause[1:]),
+            ('string',) + tuple(clause[1:]),
             ('name',) + tuple(clause[1:]),
             ]
 
@@ -452,7 +448,7 @@ class ModelField(
                     ], limit=1)
             if fields:
                 field, = fields
-                name = field.field_description
+                name = field.string
                 cls._get_name_cache.set((model, field), name)
             else:
                 name = field
@@ -465,8 +461,7 @@ class ModelField(
 
         to_delete = []
         if Transaction().context.get('language'):
-            if 'field_description' in fields_names \
-                    or 'help' in fields_names:
+            if 'string' in fields_names or 'help' in fields_names:
                 if 'model' not in fields_names:
                     fields_names.append('model')
                     to_delete.append('model')
@@ -477,11 +472,11 @@ class ModelField(
         res = super(ModelField, cls).read(ids, fields_names)
 
         if (Transaction().context.get('language')
-                and ('field_description' in fields_names
+                and ('string' in fields_names
                     or 'help' in fields_names)):
             trans_args = []
             for rec in res:
-                if 'field_description' in fields_names:
+                if 'string' in fields_names:
                     trans_args.append((
                             rec['model'] + ',' + rec['name'],
                             'field', Transaction().language, None))
@@ -491,12 +486,12 @@ class ModelField(
                             'help', Transaction().language, None))
             Translation.get_sources(trans_args)
             for rec in res:
-                if 'field_description' in fields_names:
+                if 'string' in fields_names:
                     res_trans = Translation.get_source(
                             rec['model'] + ',' + rec['name'],
                             'field', Transaction().language)
                     if res_trans:
-                        rec['field_description'] = res_trans
+                        rec['string'] = res_trans
                 if 'help' in fields_names:
                     res_trans = Translation.get_source(
                             rec['model'] + ',' + rec['name'],
diff --git a/trytond/trytond/ir/routes.py b/trytond/trytond/ir/routes.py
index 48ef735ea2..e6f296b4c8 100644
--- a/trytond/trytond/ir/routes.py
+++ b/trytond/trytond/ir/routes.py
@@ -81,7 +81,7 @@ def html_editor(request, pool, model, record, field):
         title = '%(model)s "%(name)s" %(field)s - %(title)s' % {
             'model': field.model_ref.name,
             'name': record.rec_name,
-            'field': field.field_description,
+            'field': field.string,
             'title': request.args.get('title', "Tryton"),
             }
 
diff --git a/trytond/trytond/ir/translation.py b/trytond/trytond/ir/translation.py
index f273330b4a..16b771ec76 100644
--- a/trytond/trytond/ir/translation.py
+++ b/trytond/trytond/ir/translation.py
@@ -336,7 +336,7 @@ class Translation(
         if name.split(',')[0] in ('ir.model.field', 'ir.model'):
             field_name = name.split(',')[1]
             if name.split(',')[0] == 'ir.model.field':
-                if field_name == 'field_description':
+                if field_name == 'string':
                     ttype = 'field'
                 else:
                     ttype = 'help'
@@ -452,7 +452,7 @@ class Translation(
         model_name, field_name = name.split(',')
         if model_name in ('ir.model.field', 'ir.model'):
             if model_name == 'ir.model.field':
-                if field_name == 'field_description':
+                if field_name == 'string':
                     ttype = 'field'
                 else:
                     ttype = 'help'
diff --git a/trytond/trytond/ir/view/model_field_form.xml b/trytond/trytond/ir/view/model_field_form.xml
index b3858c9403..397d6ccac2 100644
--- a/trytond/trytond/ir/view/model_field_form.xml
+++ b/trytond/trytond/ir/view/model_field_form.xml
@@ -2,16 +2,19 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <form>
+    <label name="string"/>
+    <field name="string"/>
     <label name="name"/>
     <field name="name"/>
+
     <label name="model_ref"/>
     <field name="model_ref"/>
+    <newline/>
+
     <label name="ttype"/>
     <field name="ttype"/>
     <label name="relation"/>
     <field name="relation"/>
-    <label name="field_description"/>
-    <field name="field_description" colspan="3"/>
     <label name="help" yfill="1"/>
     <field name="help" colspan="3"/>
     <label name="access"/>
diff --git a/trytond/trytond/ir/view/model_field_list.xml b/trytond/trytond/ir/view/model_field_list.xml
index 8ecffe6ebb..db50578c04 100644
--- a/trytond/trytond/ir/view/model_field_list.xml
+++ b/trytond/trytond/ir/view/model_field_list.xml
@@ -2,11 +2,11 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <tree>
-    <field name="name" expand="2"/>
+    <field name="string" expand="2"/>
+    <field name="name" expand="1" optional="1"/>
     <field name="model_ref" expand="1"/>
     <field name="ttype" optional="0"/>
     <field name="relation" expand="1" optional="1"/>
-    <field name="field_description" expand="1" optional="0"/>
     <field name="access" optional="1"/>
     <field name="module_ref" optional="1"/>
 </tree>
diff --git a/trytond/trytond/model/fields/field.py b/trytond/trytond/model/fields/field.py
index ed1ca58c0a..5d6e83679c 100644
--- a/trytond/trytond/model/fields/field.py
+++ b/trytond/trytond/model/fields/field.py
@@ -577,7 +577,7 @@ class FieldTranslate(Field):
             model_data = ModelData.__table__()
             model_field = ModelField.__table__()
             msg_trans = Translation.__table__()
-            if name == 'field_description':
+            if name == 'string':
                 type_ = 'field'
             else:
                 type_ = 'help'
@@ -633,7 +633,7 @@ class FieldTranslate(Field):
             res_id = -1
         elif Model.__name__ == 'ir.model.field':
             name_ = Concat(Concat(table.model, ','), table.name)
-            if name == 'field_description':
+            if name == 'string':
                 type_ = 'field'
             else:
                 type_ = 'help'
diff --git a/trytond/trytond/tests/test_ir.py b/trytond/trytond/tests/test_ir.py
index 8aa323b2ed..c7a8097f28 100644
--- a/trytond/trytond/tests/test_ir.py
+++ b/trytond/trytond/tests/test_ir.py
@@ -64,11 +64,11 @@ class IrTestCase(ModuleTestCase):
         ModelField = pool.get('ir.model.field')
 
         field, = ModelField.search([
-                ('field_description', '=', "Name"),
+                ('string', '=', "Name"),
                 ('model', '=', 'ir.lang'),
                 ('module', '=', 'ir'),
                 ])
-        self.assertEqual(field.field_description, "Name")
+        self.assertEqual(field.string, "Name")
 
     @with_transaction()
     def test_model_field_search_order_description(self):
@@ -77,12 +77,11 @@ class IrTestCase(ModuleTestCase):
         ModelField = pool.get('ir.model.field')
 
         fields = ModelField.search([
-                ('field_description', 'in', ["Name", "Code"]),
+                ('string', 'in', ["Name", "Code"]),
                 ('model', '=', 'ir.lang'),
                 ('module', '=', 'ir'),
                 ])
-        self.assertEqual(
-            [f.field_description for f in fields], ["Code", "Name"])
+        self.assertEqual([f.string for f in fields], ["Code", "Name"])
 
     @with_transaction()
     def test_model_field_lazy(self):
@@ -91,11 +90,11 @@ class IrTestCase(ModuleTestCase):
         ModelField = pool.get('ir.model.field')
 
         field, = ModelField.search([
-                ('field_description', '=', "ID"),
+                ('string', '=', "ID"),
                 ('model', '=', 'ir.lang'),
                 ('module', '=', 'ir'),
                 ])
-        self.assertEqual(field.field_description, "ID")
+        self.assertEqual(field.string, "ID")
 
     @with_transaction()
     def test_sequence_substitutions(self):