Stren or Strain: How To spell?

The word Stren is misspelled against Strain, a noun meaning "A change of form or dimensions of a solid or liquid mass, produced by a stress."

Word contains consecutive vowels 'AI' in between alphabets str & n is misspelled as 'E'
Wrong Spelling: str-e-n
Correct Spelling: str-ai-n
Explore spell check of Strain to spell without errors.