Definitions from Wiktionary (FS)

▸ noun:  Initialism of fingerspelling. [The practice of representing the letters of an alphabet using just the hands to spell out words.]
▸ noun:  (cryptography) Initialism of forward secrecy.
▸ noun:  (military, nautical, exonym) Initialism of French ship (a ship of the military of the Fifth Republic of France (used as a ship prefix)).
▸ noun:  (US) Initialism of forest service.
▸ noun:  Initialism of full service (“full sexual activity in prostitution”). [(radio) A radio format having a mix of music with locally produced programming and segments focusing on local issues.]
▸ noun:  (probability theory) Initialism of first success distribution. [Shifted geometric distribution.]
▸ verb:  Abbreviation of fingerspell. [To spell using fingerspelling.]

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