Real Dictionary

-word
combining form: You can use -word after a letter of the alphabet to refer politely or humorously to a word beginning with that letter which people find offensive or are embarrassed to use.

-word in British English
combining form in countable noun: a euphemistic way of referring to a word by its first letter because it is considered to be in some way unmentionable by the user

word
Someone's words are what they say or write.
countable noun: A word is a single unit of language that can be represented in writing or speech. In English, a word has a space on either side of it when it is written.

word in American English
a speech sound, or series of them, serving to communicate meaning and consisting of at least one base morpheme with or without prefixes or suffixes; unit of language between the morpheme and the sentence
noun: a unit of language, consisting of one or more spoken sounds or their written representation, that functions as a principal carrier of meaning. Words are composed of one or more morphemes and are either the smallest units susceptible of independent use or

word in British English
noun: one of the units of speech or writing that native speakers of a language usually regard as the smallest isolable meaningful element of the language, although linguists would analyse these further into morphemes
noun: the 2nd person of the Trinity
verb: to state in words, usually specially selected ones; phrase