Is MIDIS a Wordle Word?

Yes. MIDIS is a valid Wordle word.

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

Plurals ending in S are almost never chosen as Wordle answers.

What does MIDIS mean?

A native or inhabitant of Berlin.
A doughnut with a sweet filling.
A newspaper format with pages normally measuring about 315 by 470 millimetres (12.4 in × 18.5 inches), slightly taller and wider than a tabloid but narrower and shorter than a broadsheet.

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

Starter word rating: WeakIn the top 93% of all valid Wordle words for testing common letters.
Vowels: I
Unique letters: 4 of 5Repeats I
Common letters: I

Hard-mode trap: 7 valid words fit the pattern MI_IS. 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.