What does "msa" mean?

Initialism of motorway service area.

Msa

Common synonyms include: middle stone age, minimum sector altitude, minimum sector altitude, msal, shy-drager syndrome.

name, noun

name, noun ·Uncommon ·Advanced level

Noun

1
Initialism of motorway service area. Ireland, UK, abbreviation, alt-of, countable, initialism, uncountable
2
Initialism of multiple system atrophy. abbreviation, alt-of, countable, initialism, uncountable
3
Initialism of metropolitan statistical area. US, abbreviation, alt-of, countable, initialism, uncountable
4
Initialism of master service agreement. abbreviation, alt-of, countable, initialism, uncountable
5
Initialism of Master Settlement Agreement. abbreviation, alt-of, countable, initialism, uncountable

Show 3 more definitions

6
Initialism of minimum safe altitude. abbreviation, alt-of, countable, initialism, uncountable
7
Abbreviation of mechanically steered array. abbreviation, alt-of, countable, uncountable
8
Initialism of mail submission agent. abbreviation, alt-of, countable, initialism, uncountable
"A “mail submission agent” (MSA) that accepts outgoing mail from an MUA, grooms it, and submits it to the transport system[.]"

Proper Noun

1
Initialism of Modern Standard Arabic (Fusha). abbreviation, alt-of, initialism
2
Initialism of Modern South Arabian. abbreviation, alt-of, initialism
3
Initialism of Michigan Statutes Annotated. US, abbreviation, alt-of, initialism
4
Initialism of Middle Stone Age. abbreviation, alt-of, initialism
5
Initialism of Mobile Service Architecture. abbreviation, alt-of, initialism

"A “mail submission agent” (MSA) that accepts outgoing mail from an MUA, grooms it, and submits it to the transport system[.]"

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.