preposition/a/
to (destination); to (until); on the, to (some directions); at (said of a particular time); at, in, on (said of a particular place)
“aller au bout” — go to the end / go all the way
Synonyms: de
Related: au, aujourd'hui, auquel, aux, auxquelles, auxquels, jusqu'à
Inherited from Old French a, a merge of Latin ad and ab.