תנשמת Tinshemet
Every verse in which this word stands — 3 places, in canonical order, first appearance to last. These are the places the lexicon carries under this word's own entry, counting every form the text writes it in, which is the number on the list.
One spelling, two creatures — Strong's own definition says as much. In Vayikra 11:18 it stands among the birds, traditionally a white owl; in 11:30 it closes the list of creeping things, traditionally the chameleon or mole. Both stands are counted in this one row, and the two identifications are each discussed.
וְאֶת־הַתִּנְשֶׁמֶת וְאֶת־הַקָּאָת וְאֶת־הָרָחָֽם
and the horned owl, and the pelican, and the carrion-vulture;
וְהָאֲנָקָה וְהַכֹּחַ וְהַלְּטָאָה וְהַחֹמֶט וְהַתִּנְשָֽׁמֶת
and the gecko, and the land-crocodile, and the lizard, and the sand-lizard, and the chameleon.
אֶת־הַכּוֹס וְאֶת־הַיַּנְשׁוּף וְהַתִּנְשָֽׁמֶת
the little owl, and the great owl, and the horned owl;
Quick answers
What is the Hebrew word for tinshemet?
Tinshemet in Hebrew is תנשמת, with a gematria of 1,190 in the standard method.
How many times is the tinshemet mentioned in the Tanakh?
The word stands 3 times in the Tanakh, first at Leviticus 11:18.
A spelling is not a word. The corpus never writes תנשמת bare — every one of its places carries a particle or a suffix on the front or the back — so the spelling above is the word's own headword, and the verses listed here are the only door to it.