second (Noun) — 1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites.
second (Noun) — An indefinitely short time. ex. "wait just a second"
second (Noun) — The fielding position of the player on a baseball team who is stationed near the second of the bases in the infield.
second (Noun) — A particular point in time. ex. "the second he arrived the party began"
second (Noun) — Following the first in an ordering or series. ex. "he came in a close second"
second (Noun) — A 60th part of a minute of arc. ex. "the treasure is 2 minutes and 45 seconds south of here"
second (Noun) — The official attendant of a contestant in a duel or boxing match.
second (Noun) — A speech seconding a motion. ex. "do I hear a second?"
second (Noun) — The gear that has the second lowest forward gear ratio in the gear box of a motor vehicle. ex. "he had to shift down into second to make the hill"
second (Noun) — Merchandise that has imperfections; usually sold at a reduced price without the brand name.
second (Verb) — Give support or one's approval to. ex. "I'll second that motion"
second (Verb) — Transfer an employee to a different, temporary assignment. ex. "The officer was seconded for duty overseas"
second (Adjective) — Coming next after the first in position in space, time, degree or magnitude.
second (Adjective) — (music) a part or voice or instrument or orchestra section lower in pitch than or subordinate to the first. ex. "second flute" ex. "the second violins"
second (Adverb) — In the second place. ex. "second, we must consider the economy"