killer is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Noun (COUNTABLE AND UNCOUNTABLE)

One who or that which kills.
• Synonym: assassin, murderer, Thesaurus:killer
(figuratively) That which causes stress or is extremely difficult, especially that which may cause failure at a task.
• That test was a killer.
(figuratively) Something that is so far ahead of its competition that it effectively kills off that competition.
• Digital streaming platforms are CD killers.

Adjective (COMPARABLE)

(slang) Excellent, very good, cool.
• Synonym: Thesaurus:excellent
Causing death, destruction, or obliteration.
• killer bee
Distressing, uncomfortable.
• I had a killer headache this morning.

killer is a Scrabble valid word

killer

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

killer is an iScramble, QuickWords valid word

killer

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• REKILL

Same letters plus one

• KEILLOR
• KILLERS
• KILLMER
• REKILLS
• RESKILL
• SKILLER

Same letters minus one

• ILLER
• KELLI
• KILLE
• KLIER
• KRELL
• KRILL
• LERIK
• LIKER
• RILEK
• RILKE
• RILLE