If it's a Latin word it means 'to'. If you mean the abbreviation, the full form is 'advertisment'.
Word for word....
Mean can be ad adverb. For example, the mean man, would be using the word mean as an adverb.
Did you mean AD as in Anno Domini? If so, then the equivalent for AD in Indonesian is M which stands for Masehi. Masehi comes from the word Isa Al-Masih (Jesus Christ).
ad rem - to the matter (subject, topic, issue)
The English meaning of the Latin phrase 'a posse ad esse' is From possibility to reality. In the word-by-word translation, the preposition 'a' means 'from'. The verb 'posse' means 'to be able to'. The preposition 'ad' means 'to'. The verb 'esse' means 'to be'.
An abbreviated (or shortened) word for advertisement is 'ad'.
The root of the word "administration" is "administer," which originated from the Latin word "administrare," meaning to manage or oversee.
The phrase 'Ad maiorem Dei gloriam' means To the greater glory of God. In the word-by-word translation, the preposition 'ad' means 'to'. The adjective 'maiorem' means 'greater'. The noun 'Dei' means 'God'. The noun 'gloriam' means 'glory'.
denoting motion or direction to
ad sumus should be written 'adsumus' and means 'we are present'
advance
word for word = ad verbum