whilst is a valid English word

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

Meanings

Adverb (NOT COMPARABLE)

(archaic or obsolete except dialectal) Often preceded by the: During the time; meanwhile.

Conjunction

(Britain Australia literary or rare in North America) Synonym: while
• Synonyms: Thesaurus:while

whilst is a Scrabble valid word

whilst

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

whilst is an iScramble, QuickWords valid word

whilst

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

Same letters words (Anagrams)

• none

Same letters plus one

• SWITHLY
• WHILEST
• WHISTLE
• WHISTLY
• WHITSEL
• WHOLIST

Same letters minus one

• HILTS
• LITHS
• STIHL
• SWITH
• WHIST
• WHITS
• WILTS
• WISHT
• WITHS