Both

> both
A word that can be used in several ways: as a determiner, as in "He broke both his arms" and "He lost both his sons in the war"; as a pronoun, as in "I don't mind which house we rent, I like them both" and "Neither of them work here. The boss sacked them both"; as a conjunction, as in "He both likes and admires her" and "She is both talented and honest". Both can sometimes be followed by "of". "Both their children are grown up" and "Both of their children are grown up" are both acceptable. Care should be taken to avoid using both unnecessarily. In the sentence "The two items are both identical", "both" is redundant.