There are 2 definitions of gsm in English:

gsm1

Line breaks: gsm

abbreviation

Grams per square metre, a measure of weight for paper: 100 gsm paper

Definition of gsm in:

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Word of the day hypnopompic
Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
adjective
relating to the state immediately preceding waking up

There are 2 definitions of gsm in English:

GSM2

Line breaks: GSM
Pronunciation: /dʒiːɛsˈɛm
 
/

abbreviation

Global System (or Standard) for Mobile, a standardized international system for digital mobile telecommunication.

Definition of gsm in:

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Word of the day hypnopompic
Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
adjective
relating to the state immediately preceding waking up