Dictionary

(diminutive) An odd number.

Example: So let's see. There are two evens here and three odds.

Something left over, not forming part of a set.

Differing from what is usual, ordinary or expected.

Example: She slept in, which was very odd.

Without a corresponding mate in a pair or set; unmatched; (of a pair or set) mismatched.

Example: My cat Fluffy has odd eyes: one blue and one brown.

Left over, remaining after the rest have been paired or grouped.

Example: I'm the odd one out.

Left over or remaining (as a small amount) after counting, payment, etc.