Is DOCOS a Wordle Word?

Yes. DOCOS 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 DOCOS mean?

A film, TV program, publication etc. which presents a social, political, scientific or historical subject in a factual or informative manner.

Something transposed from a thought to a document; the written account of an idea.
Documentary evidence and sources.
Documents that explain the operation of a particular machine or software program.

1 more noun definition

Comments that explain the usage of individual functions, libraries and blocks of code.

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

Starter word rating: WeakIn the top 87% of all valid Wordle words for testing common letters.
Vowels: O
Unique letters: 4 of 5Repeats O
Common letters: O

Hard-mode trap: 6 valid words fit the pattern _OCOS. 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.