(countable, botany) A fertilized and ripened ovule, containing an embryonic plant.

(countable) Any small seed-like fruit.

(countable, agriculture) Any propagative portion of a plant which may be sown, such as true seeds, seed-like fruits, tubers, or bulbs.

(uncountable, collective) An amount of seeds that cannot be readily counted.

(countable) A fragment of coral.

(uncountable) Semen.

(countable, figurative) A precursor.

(countable) The noun "seed" represents the initial state, position, or precursor in a changing, growing, or developing process, as well as the initial position of a competitor or team in a tournament, the initialization state of a pseudorandom number generator or similar system, and a commercial message in a creative format placed on relevant sites on the internet.

(now rare) Offspring, descendants, progeny.

Race; generation; birth.

(physics) A small particle, bubble, or imperfection that serves as a nucleation point for some process.

A small bubble formed in imperfectly fused glass.

(transitive) To plant or sow an area with seeds.

(transitive) To cover thinly with something scattered; to ornament with seedlike decorations.

(transitive) To start; to provide, assign or determine the initial resources for, position of, state of.

(sports, gaming) To allocate a seeding to a competitor.

(Internet, transitive) To leave (files) available for others to download through peer-to-peer file sharing protocols (e.g. BitTorrent).

(intransitive) To be qualified to compete, especially in a quarter-final, semi-final, or final.

(meteorology) To scatter small particles within (a cloud or airmass) in order to trigger the formation of rain.

(intransitive) To produce seed.

(intransitive) To grow to maturity.

(slang, vulgar) To ejaculate inside the penetratee during intercourse, especially in the rectum.