reference book (book providing factual information)

study aid; study reference

reference

refer to, consult

mathematics (field of study)

to buy / to value, to appreciate, to have a high opinion of someone / to provoke someone, to stir

buying, shopping

(chiefly women's speech) first person singular pronoun: I, me

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness