Definition

/ɒd/

noun

(diminutive) An odd number.
“So let's see. There are two evens here and three odds.”
Something left over, not forming part of a set.

adjective

Differing from what is usual, ordinary or expected.
“She slept in, which was very odd.”
Without a corresponding mate in a pair or set; unmatched; (of a pair or set) mismatched.
“My cat Fluffy has odd eyes: one blue and one brown.”
Left over, remaining after the rest have been paired or grouped.
“I'm the odd one out.”
Left over or remaining (as a small amount) after counting, payment, etc.
Scattered; occasional, infrequent; not forming part of a set or pattern.
“I don't speak Latin well, so in hearing a dissertation in Latin, I would only be able to make out the odd word of it.”