Fit is the correct spelling for the word fit.
The letters spell the word typify. They also spell fit, if, it, pit, pity and tip.
The word meaning "physically active" is spelt correctly in the question.
The likely word is tantrum (a childish fit or outburst).A similar word, tandem, means in two parts or paired.
Conniption fit.
Several words can fit here. Cast, enchant, or curse would all work.
The letters PFITH can spell a few short words in English : I if it hi hip tip fit hit pit pi phi (Greek letters) pith
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 casino.
The letters spell the word geometrical.
The letters spell the word "freelance."
What word does these notes on the staff spell?