Is DENCH a Wordle Word?

Yes. DENCH is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

What does DENCH mean?

/dɛnt͡ʃ/

Excellent; impressive; awesome.“‘Oh God I got it so wrong last night when DS2 was being an arse. I told him he was “Dench” and got a beaming smile and a “Thanks mum”!’ – Smoothieooo”
Well-built, muscular, attractive.“This is my final Dench update for 2019. I will continue the bulk into 2020 but will also incorporate a short shred at some point during the year.”

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: WeakIn the top 46% of all valid Wordle words for testing common letters.
Vowels: E
Unique letters: 5 of 5
Common letters: E

Hard-mode trap: 6 valid words fit the pattern _ENCH. If you reach it, you may need several guesses to find the last letter.

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.