Is SAFER a Wordle Word?

Yes. SAFER is a valid Wordle word.

It is on the original Wordle answer list and has not been an answer yet, so it could be a future answer.

What does SAFER mean?

Not in danger; out of harm's reach.“You’ll be safe here.”
Free from risk.“It’s safe to eat this.”
Providing protection from danger; providing shelter.“We have to find a safe spot, where we can hide out until this is over.”

8 more adjective definitions

When a batter successfully reaches first base, or when a baserunner successfully advances to the next base or returns to the base he last occupied; not out.“The pitcher attempted to pick off the runner at first, but he was safe.”
Properly secured.“The documents are safe.”
(used after a noun, often forming a compound) Not susceptible to a specified source of harm.“dishwasher-safe”
Great, cool, awesome, respectable; a term of approbation, often as interjection.
Lenient, usually describing a teacher that is easy-going.
Reliable; trusty.
Cautious.
Of a programming language, type-safe or more generally offering well-defined behavior despite programming errors.

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

Starter word rating: GoodIn the top 4% 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: 10 valid words fit the pattern SA_ER. 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.