RF

Origin 1

Abbreviation

abbreviation

(photography) Abbreviation of range finder

Initialism

initialism

(electronics, physics) Initialism of radio frequency
(pathology) Rheumatoid Factor
(military, engineering, slang) RF (practical joke) (A practical joke, especially a clever one.)
Russian Federation
(baseball) right field, right fielder

Origin 2

Combination of prefix F and prefix modifier R

Initialism

prefix

(US, military, aviation) reconnaissance fighter; an unarmed fighter modified for photo-reconnaissance prefix

Derived terms