כֹּחַ Ko'ach
Every verse in which this word stands as the creature — 1 place, in canonical order, first appearance to last. The word's lexicon entry carries more than the creature, so these are the creature's own verses — the row's note says what the other places are.
Of Vayikra 11:30's five. Everywhere else in the books this word is strength itself; as a creature it stands in this one verse — traditionally the monitor lizard or chameleon, and the identification is discussed. This row counts only the verse of the creature.
וְהָאֲנָקָה וְהַכֹּחַ וְהַלְּטָאָה וְהַחֹמֶט וְהַתִּנְשָֽׁמֶת
and the gecko, and the land-crocodile, and the lizard, and the sand-lizard, and the chameleon.
Quick answers
What is the Hebrew word for ko'ach?
Ko'ach in Hebrew is כח, with a gematria of 28 in the standard method.
How many times is the ko'ach mentioned in the Tanakh?
The word stands 1 time as the creature, first at Leviticus 11:30.
A spelling is not a word. The bare letters כח stand 49 times in the corpus, which is a different question and often a different number: the same letters can spell a name or another word entirely, and the creature written with a particle attached is a spelling that search never returns. It is here, as itself.
See all 49 occurrences of the spelling כח →