Meaning

• Something that is number two in a series.

• Something that is next in rank, quality, precedence, position, status, or authority.

• The place that is next below or after first in a race or contest.

• (usually in the plural) A manufactured item that, though still usable, fails to meet quality control standards.

  "They were discounted because they contained blemishes, nicks or were otherwise factory seconds."

• (usually in the plural) An additional helping of food.

  "That was good barbecue. I hope I can get seconds."

• A chance or attempt to achieve what should have been done the first time, usually indicating success this time around. (See second-guess.)

• The interval between two adjacent notes in a diatonic scale (either or both of them may be raised or lowered from the basic scale via any type of accidental).

• The second gear of an engine.

• Second base.

• The agent of a party to an honour dispute whose role was to try to resolve the dispute or to make the necessary arrangements for a duel.

• A Cub Scout appointed to assist the sixer.

Meaning

• To agree as a second person to (a proposal), usually to reach a necessary quorum of two. (See under #Etymology 3 for translations.)

  "I second the motion."

• To follow in the next place; to succeed.

• To climb after a lead climber.

Meaning

• Number-two; following after the first one with nothing between them. The ordinal number corresponding to the cardinal number two.

  "He lives on Second Street."

• Next to the first in value, power, excellence, dignity, or rank; secondary; subordinate; inferior.

• Being of the same kind as one that has preceded; another.

  "Residents of Texas prepared for Hurricane Harvey, which would in some ways turn out to become the second Hurricane Katrina."

Meaning

• (with superlative) After the first; at the second rank.

  "Saturn is the second largest planet."

• After the first occurrence but before the third.

  "He is batting second today."