plural of 49er

plural of 419

plural of 4D ultrasound

plural of 419 fraud

plural of AK-47

plural of 45

(British) A grade of pencil with lead that makes darker marks than a pencil grade 3B but lighter marks than a pencil of grade 5B; a pencil with very soft lead.

(biochemistry, uncountable) a protein found in neurons, a component of the exocyst involved in regulating actin polymerization

plural of 420

A game played with a set of common double-six dominoes.