mainspring is a valid English word

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

Meanings

Noun (COUNTABLE)

(horology) The principal spring of a clockwork mechanism, which drives it by uncoiling.
(figuratively) The most important reason for, or element of, something.
• My daughter is the mainspring of my life.

mainspring is a Scrabble valid word

mainspring

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

mainspring is an iScramble, QuickWords valid word

mainspring

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

Same letters words (Anagrams)

• none

Same letters plus one

• MAINPRISING
• MAINSPRINGS

Same letters minus one

• SIRNAMING
• SPRAINING
• SPRINGMAN