The correct spelling is 'theory'.
That is the correct spelling of the word "basing" to mean establishing a base or reference point for a statement, theory, or experiment.
Spell check your answer
The determiner is spelled these (here, as opposed to those over there).The similar word is thesis, an academic paper on a given subject or theory.
if it is a story you need to spell, if there is a theory then its the cell
Theory.
the hardest word to spell is: perpondickulor
The Spanish word for "spell" (as in letters in a word) is "deletrear" Which translated lyerally means to separate the letters. The word for "spell" (as in time) is "temporada". The word for "spell" (as in hex) is "encanto".
The letters spell the word geometrical.
The letters spell the word casino.
The letters spell the word "freelance."
What word does these notes on the staff spell?
Those letters will spell the word vinegar.