'Word' in the Bible

When Benaiah arrived at the tent of the Lord, he said to him, "The king says, 'Come out!'" But he replied, "No, I will die here!" So Benaiah sent word to the king and reported Joab's reply.

You have kept your word to your servant, my father David; this very day you have fulfilled what you promised.

Elijah approached all the people and said, "How long are you going to be paralyzed by indecision? If the Lord is the true God, then follow him, but if Baal is, follow him!" But the people did not say a word.

Micaiah said, "That being the case, hear the word of the Lord. I saw the Lord sitting on his throne, with all the heavenly assembly standing on his right and on his left.