<p><strong>Adjective</strong></p><ul><li>next after the first; being the ordinal number for two</li><li>being the latter of two equal parts</li><li>next after the first in place, time, or value: the second house from the corner</li><li>next after the first in rank, grade, degree, status, or importance: the second person in the company</li><li>alternate; other: I have my hair cut every second week</li><li>inferior or subordinate; secondary</li><li>noting or pertaining to the second person</li><li>being the lower of two parts for the same instrument or voice: second horn; second alto</li><li>other or another: a second Solomon</li><li>operating at the gear transmission ratio at which drive shaft speed is greater than that of low gear but not so great as that of other gears for a given engine crankshaft speed: second gear</li></ul><p><strong>Noun</strong></p><ul><li>a second part</li><li>the second member of a series</li><li>a person who aids or supports another; assistant; backer</li><li>Boxing: a person who, between rounds of a prizefight, gives aid, advice, etc., to a boxer</li><li>a person who serves as a representative or attendant of a duelist</li><li>second gear</li><li>a person or thing that is next after the first in place, time, or value</li><li>a person or thing that is next after the first in rank, grade, degree, status, or importance</li><li>usually seconds</li><li>an additional helping of food: He had seconds on the meat and potatoes</li><li>(in parliamentary procedure) a person who expresses formal support of a motion so that it may be discussed or put to a vote</li><li>an act or instance of doing this</li><li>(in certain British universities) a type or grade of college degree granted according to a student's performance on specific written and oral examinations</li><li>Music: a tone on the next degree from a given tone</li><li>the interval between such tones</li><li>the harmonic combination of such tones</li><li>the lower of two parts in a piece of concerted music</li><li>a voice or instrument performing such a part</li><li>an alto</li><li>usually seconds</li><li>Commerce: goods below the first or highest quality, especially containing visible flaws</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to assist or support</li><li>to further or advance, as aims</li><li>(in parliamentary procedure) to express formal support of (a motion, proposal, etc.), as a necessary preliminary to further discussion or to voting</li><li>to act as second to (a boxer, duelist, etc.)</li></ul><p><strong>Adverb</strong></p><ul><li>in the second place, group, etc.; secondly: The catcher is batting second</li></ul>