Verb conjugation of "angleichen" in German

My daugther was crying all night and we did not know why. We assume that she is getting into the terrible two age and wants to give us a hard time. We love her so much and do not get upset by that.
It is a thought that someone may have if he does not know anything about another group of individuals. He hears many stereotypes and blindly creates his own images in which he strongly believes.
About multiple translations: We want students to memorize 'idioma' and 'lengua' as they are both very common. The best we could do is to place them in 2 different lessons, so that users learn them both.