second

from The Century Dictionary.

• To follow up; supplement.
• To support; aid; forward; promote; back, or back up; specifically, to assist in a duel.
• In music, to sing second to.
• In legislative and deliberative bodies, public meetings, etc., formally to express approval and support of (a motion, amendment, or proposal), as a preliminary to further discussion or to formal adoption.
• In the British Royal Artillery and Royal Engineers, to put into temporary retirement, as an officer when he accepts civil employment under the crown.
• Next after the first in order, place, time, rank, value, quality, etc.: an ordinal numeral: as, the second day of the month; the second volume of a book; the second auditor of the treasury; the second table of the law.
• Secondary; not primary; subordinate; in music, lower in pitch, or rendering a part lower in pitch: as, second fiddle; second soprano.
• Other; another: as, a second Daniel; his second self.
• Favorable; helpful; aiding or disposed to aid.
• In mathematics, noting a function derived from the performance of the same operation twice in succession: thus, the second difference is the difference of the difference; so second differentials, derivatives, differential coefficients, etc.
• In the two-handed sword, or spadone, a pair of hooks or projections slightly curved toward the point. forged with the blade itself, and separating the heel from the sharpened part of the blade. See spadone.
• In rapiers of the sixteenth and seventeenth centuries, the outer defense beyond the Cross-guard, formed of a ring surrounding the blade, a cross, pair of shells, or the like.
• noun The one next after the first in order, place, time, rank, value, quality, or importance; that one of any two considered relatively which follows or comes immediately after the other.
• noun In music:
• noun A tone on the next or second diatonic degree above or below a given tone; the next tone in a diatonic series.
• noun The interval between any tone and a tone on the next degree above or below.
• noun The harmonic combination of two tones at the interval thus described.
• noun In a scale, the second tone from the bottom: solmizated re.
• noun A second voice or instrument—that is, one whose part is subordinate to or lower than another of the same kind; specifically, a second violin or second soprano; popularly, an alto.
• noun Same as secondo.
• noun pl, That which is of second grade or quality; hence, any inferior or baser matter.
• noun Specifically
• noun A coarse kind of fiour, or the bread made from it.
• noun Acetic acid made from acetate of lime.
• noun In base-ball, same as second base. See baseball.
• noun Another; another person; an inferior.
• noun One who assists and supports another; specifically, one who attends a principal in a duel or a pugilistic encounter, to advise or aid him, and see that all proceedings between the combatants are fair, and in accordance with the rules laid down for the duel or the prizering.
• noun Aid; help; assistance.
• noun The sixtieth part of a minute.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb rare To follow in the next place; to succeed; to alternate.
• transitive verb To follow or attend for the purpose of assisting; to support; to back; to act as the second of; to assist; to forward; to encourage.
• transitive verb (Parliamentary Procedure) to support, as a motion{6} or proposal, by adding one's voice to that of the mover or proposer.
• noun One who, or that which, follows, or comes after; one next and inferior in place, time, rank, importance, excellence, or power.
• noun One who follows or attends another for his support and aid; a backer; an assistant; specifically, one who acts as another's aid in a duel.
• noun obsolete Aid; assistance; help.
• noun An article of merchandise of a grade inferior to the best; esp., a coarse or inferior kind of flour.
• noun The sixtieth part of a minute of time or of a minute of space, that is, the second regular subdivision of the degree
• noun In the duodecimal system of mensuration, the twelfth part of an inch or prime; a line. See Inch, and Prime, n., 8.
• noun The interval between any tone and the tone which is represented on the degree of the staff next above it.
• noun The second part in a concerted piece; -- often popularly applied to the alto.
• noun (Parliamentary Procedure) A motion in support of another motion which has been moved in a deliberative body.
• noun the hand which marks the seconds on the dial of a watch or a clock.
• adjective Immediately following the first; next to the first in order of place or time; hence, occurring again; another; other.
• adjective Next to the first in value, power, excellence, dignity, or rank; secondary; subordinate; inferior.
• adjective Being of the same kind as another that has preceded; another, like a prototype.
• adjective See Adventist.
• adjective the child of a cousin.
• adjective See under File.