Definitions from Wiktionary (FI)

▸ noun:  (music) The solfeggio syllable used to indicate the sharp of the fourth note of a major scale.
▸ noun:  Short form of the female given name Fiona.
▸ noun:  (in combination) Abbreviation of fidelity. (e.g. in hi-fi, lo-fi, or wi-fi) [Faithfulness to one's duties.]
▸ noun:  (in combination) Abbreviation of fiction. (e.g. in sci-fi) [(literature) Literary type using invented or imaginative writing, instead of real facts, usually written as prose.]
▸ noun:  Abbreviation of factor I. (clotting factor I)
▸ noun:  (law enforcement) Initialism of field interview/interrogation.
▸ noun:  (automotive) Initialism of fuel injection. [The delivery, under pressure, of a metered amount of fuel, as a fine spray, into the intake airflow or combustion chambers of an internal combustion engine.]
▸ noun:  Initialism of fault indicator.

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