a trivial lie
"he told a fib about eating his spinach"
"how can I stop my child from telling stories?"
A lie, especially one that is more or less inconsequential.
The fibula.
A kind of experimental poem where the number of syllables in each line is the next succeeding Fibonacci number.
Abbreviation of focused ion beam.
In plain English: A fib is a tool that uses a tiny beam of ions to change the surface of materials.
"The lab technician used a fib to precisely etch the microchip's surface."
Usage: A fib (as in, a poetic form) utilizes lines with syllable counts following the Fibonacci sequence (1, 1, 2, 3, 5, 8, etc.). It's a specific and relatively niche type of poetry, so be sure your context makes this meaning clear.
tell a relatively insignificant lie
"Fibbing is not acceptable, even if you don't call it lying"
To lie, especially more or less inconsequentially.
To punch, especially a series of punches in rapid succession; to beat; to hit; to strike.
In plain English: To fib means to hit someone quickly and repeatedly.
"The boxer could fib his opponent with incredible speed."
Usage: Use "fib" to describe delivering a quick, repeated sequence of blows, like a boxer throwing a flurry of punches. It implies speed and intensity rather than a single, powerful strike.