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Abbreviation of Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch.

Abbreviation of Cretaceous-Paleogene boundary.

suitable for adolescents, typically due to the absence of explicit sexuality and intense graphic violence

(LGBT, countable) Initialism of preferred gender pronoun. / (medicine, countable) Initialism of pelvic girdle pain.

(encryption, software) Initialism of Pretty Good Privacy. (A program using public key encryption popularly used with email.)

Abbreviation of paternal grandfather.

Initialism of paternal grandmother. / Initialism of precision guided munition. / Initialism of platinum group metal. / Initialism of Papyri Graecae Magicae, Latin for the Greek Magical Papyri

(golf) Initialism of Professional Golfers Association.