1 Cor. 12:4-8
There are diversities of gifts, but the same Spirit. There are differences of ministries, but the same Lord. And there are diversities of activities, but it is the same God who works all in all. But the manifestation of the Spirit is given to each one for the profit of all: for to one is given the word of wisdom through the Spirit, to another the word of knowledge through the same Spirit,
The gift of word of knowledge is an utterance gift. In the above scripture, we see that it is WORD of knowledge, not WORDS. What is a word? It is a FRAGMENT of a sentence. Therefore, a word of knowledge is a fragment of someone's knowledge. This gives us the definition of the gift of word of knowledge; it is a fragment of the knowledge of God.