Odoo: How to rename "New" label, in odoo module, in new object form?

The New value is defined in the basic model of the form view. To change it you can override the getName function like the following:

import BasicModel from 'web.BasicModel';
import core from 'web.core';

var _t = core._t;

BasicModel.include({
    getName: function (id) {
        var record = this.localData[id];
        var returnValue = this._super(id);
        if ( returnValue === _t("New") && record.model == 'calendar.event') {
            return _t('New meeting');
        } else {
            return returnValue;
        }
    }
});

You need to add the file under the assets entry in the __manifest__.py file.

'assets': {
    'web.assets_backend': [
        '{module_name}/static/src/js/basic_model.js',
    ],
}

Edit:

For more details on how to add the js file to the manifest, check the assets documentation.

Hi wald i found some solution:

Inside addons/web/static/src/webclient/actions/action_service.js in you need see this code "New" this is target attribute but i think you do not override and change it like "New Meeting"