Definitions of “word”:
from Oxford Advanced Learner’s Dictionary:
a single unit of language which means something and can be spoken or written.
a promise or guarantee that you will do something or that something will happen or is true.
a piece of information or news.
Bible: the Word (also the Word of God). The Bible and its teaching.
from The American Heritage® Dictionary of the English Language, 4th Edition:
A sound or a combination of sounds, or its representation in writing or printing, that symbolizes and communicates a meaning and may consist of a single morpheme or of a combination of morphemes.
The Scriptures; the Bible.
definitions from Wiktionary:
A distinct unit of language which is approved by some authority.
Different symbols, written or spoken, arranged together in a unique sequence that approximates a thought in a person’s mind.
To say or write (something) using particular words.