Entry 2 senses · 2 variants Webster, 1913 Cotemporary /(k?-t?m"p?-r?-r?)/ · Co·tem·po·ra·ry · IPA a. n. 01 a. Living or being at the same time; contemporary. 1. Living or being at the same time; contemporary. 02 n. One who lives at the same time with another; a contemporary. pl. Cotemporaries ((-rĭz)) 1. One who lives at the same time with another; a contemporary.