Second1  —adj. 1 next after first. 2 additional (ate a second cake). 3 subordinate; inferior. 4 mus. Performing a lower or subordinate part (second violins). 5 such as to be comparable to (a second callas). —n. 1 runner-up. 2 person or thing besides the first or previously mentioned one. 3 second gear. 4 (in pl.) Inferior goods. 5 (in pl.) Colloq. Second helping or course. 6 assistant to a duellist, boxer, etc. —v. 1 support; back up. 2 formally support (a nomination, resolution, or its proposer).  at second hand indirectly.  seconder n. (esp. In sense 2 of v.). [latin secundus from sequor follow]