gsm

1. abbreviationinitialismInitialism of grams per square metre (unit for measuring the weight of paper).

   It produces grayback and whiteback coated duplex of 250-400 gsm.

   2008, Paper Technology, page 54

1. abbreviationinitialismcommunicationsInitialism of Global System for Mobile communications.

   The entire rail network has long operated its own masts, used for communicating with drivers. But they are largely GSM. That's 2G to us -yesterday's tech.

   2025 October 1, Paul Clifton, “Reaching out for superfast WiFi”, in RAIL, number 1045, page 50

plural GSMs

1. abbreviationcountableinitialismuncountableInitialism of gender or sexual minority (compare GSRM).
2. abbreviationcountableinitialismuncountableInitialism of grenache, Shiraz (Syrah), Mourvèdre, a kind of blended red wine.
3. abbreviationcountableinitialismuncountableInitialism of general staff meeting.

   The dates for all GSMs in 2024 have now been added to the Events Calendar on this website.

   2023 December 11, Frumple, “December 2023 GSM Results”, in Minecart Rapid Transit

   1 more example

   To simplify tracking GSM deadlines for both members and staff, the deadlines for conductor applications/moderator nominations and for topic submissions will be combined into one single deadline.

   2024 December 15, Frumple, “December 2024 GSM Results”, in Minecart Rapid Transit