Is BASER a Wordle Word?

Yes. BASER is a valid Wordle word.

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

What does BASER mean?

8 more adjective definitions

Of low social standing or rank; vulgar, common.
Morally reprehensible, immoral; cowardly.
Inferior; unworthy, of poor quality.
Designating those metals which are not classed as precious or noble.
Alloyed with inferior metal; debased.“base bullion”
Of illegitimate birth; bastard.
Not classical or correct.“base Latin”
Not held by honourable service.“A base estate is one held by services not honourable, or held by villenage. Such a tenure is called base, or low, and the tenant is a base tenant.”

Of sound, a voice or an instrument, low in pitch or frequency.“The giant spoke in a deep, bass, rumbling voice that shook me to my boots.”

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

Starter word rating: GoodIn the top 3% of all valid Wordle words for testing common letters.
Vowels: A, E
Unique letters: 5 of 5
Common letters: A, E, R

Hard-mode trap: 8 valid words fit the pattern _ASER. 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.