Fi Definition

noun

(music) The solfeggio syllable used to indicate the sharp of the fourth note of a major scale.

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abbreviation

(computer science) The end of an "if" program instruction, usually as shorthand.

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The ccTLD for Finland as assigned by the IANA.

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Fidelity, as in sound hi-fi.

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Abbr. for the Latin fidelis - as in Semper fi.
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Fiction.

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pronoun

Short form of the female given name Fiona.

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