i Register
In some senses, spg is marked as derogatory, historical. Watch for register when choosing this word.
name
Initialism of Society for the Propagation of the Gospel.
noun
Initialism of self-propelled gun.
Initialism of salt, (black) pepper, and garlic.
Initialism of sarong party girl.
Initialism of submersible pressure gauge.
Initialism of strong parental guidance.
noun
Alternative form of SPG: Initialism of self-propelled gun (“artillery”)