is a specific kind of: caressing, cuddling, fondling, hugging, kissing, necking, petting, smooching, snuggling.

domain region: Britain, Great Britain, U.K., UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland.

domain usage: colloquialism.

derivation: buss, kiss, osculate, snog.

is a specific kind of: touch.

is a broader term that covers: peck, smack.

derivation: buss, kiss, osculation | caressing, cuddling, fondling, hugging, kissing, necking, petting, smooching, snuggling | snogging | kisser, osculator.