CFI stands for Certificated Flight Instructor in US aviation — the licensed professional who sits in the right seat while you nervously attempt your first solo landing. In the UK, the equivalent title is Chief Flying Instructor, meaning the head honcho of a flying school or club. Either way, a CFI is the person standing between you and a pilot's license, armed with dual controls and infinite patience. If you're logging flight hours, your CFI's signature is basically currency.
After forty hours of training, my CFI finally signed me off for my first solo cross-country flight.
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(US, aviation) certificated flight instructor.
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(UK, aviation) chief flying instructor.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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