summation is a valid English word

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

Meanings

Noun (COUNTABLE AND UNCOUNTABLE)

summarization; summary; summing up.
(mathematics) summing; summing up; adding (adding up) of a series of items.

summation is a Scrabble valid word

s1u1m3m3a1t1i1o1n1

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

summation is an iScramble, QuickWords valid word

s1u2m3m4a5t6i7o8n9

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

Same letters words (Anagrams)

• none

Same letters plus one

• AUTONOMISM
• COMMUNITAS
• PANTOMIMUS
• STRAMONIUM
• SUMMATIONS

Same letters minus one

• INSTAMOM
• INSTAMUM
• MANITOUS
• MANUMITS
• MISMOUNT
• NUMISMAT
• OMMATINS
• TINAMOUS