Streaghtedge or Straightedge: How To spell?

The word Streaghtedge is misspelled against Straightedge, a noun meaning "A board, or piece of wood or metal, having one edge perfectly straight, -- used to ascertain whether a line is straight or a surface even, and for drawing straight lines."

Word contains consecutive vowels 'AI' in between alphabets str & ghtedge is misspelled as 'EA'
Wrong Spelling:  str-ea-ghtedge 
Correct Spelling:  str-ai-ghtedge 
Explore spell check of Straightedge to spell without errors.

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