To send a message on a cell phone.

(telecommunications) Initialism of Short Message Service. A text message sent on a cell phone. / (numismatics) Initialism of special mint set. / Initialism of salesman sample.

(military, nautical, initialism) SMS — Seiner Majestät Schiff – literally, "His Majesty's Ship" in German;

(video games) Initialism of Sega Master System.

plural of SM

(knitting) Initialism of slip marker.

(Internet slang, text messaging) Initialism of so much.

(fandom slang) Initialism of Pokémon Sun and Moon.

(US, space science) Initialism of service module. / (music) Initialism of short meter. / (science fiction) Initialism of space marine.

service mark