word; unit of language / word; oath; guarantee / word; brief conversation / word; unit of data / the ability or permission to talk / religious teachings

word (used to assert that something is true)

verbatim; word for word (in exactly the same words)

magic word (word with magical effect) / magic word (mnemonic of please or thanks)

(linguistics) portmanteau word (word which combines the meaning of two words)

keyword (word used as an identifier of a document to assist in searching)

word of mouth (verbal, personal transmission of information)

password (word used to gain admittance into a system or location)

(idiomatic) in a word; briefly; concisely

(linguistics) polysemous word: specifically, word with a network of multiple, related, context-dependent senses, eluding formal definition