CM
Common Metre

COBOL
common business-oriented language

common
the common reader

Common Babbler
Argya caudata

Common Blackbird
Turdus merula

Common Chlorospingus
Chlorospingus flavopectus

Common Crane
Grus grus

Common Cuckoo
Cuculus canorus

Common Firecrest
Regulus ignicapilla

Common Gull
Larus canus

Common Jery
Neomixis tenella

Common Kestrel
Falco tinnunculus

Common Loon
Gavia immer

Common Nightingale
Luscinia megarhynchos

Common Pheasant
Phasianus colchicus

Common Pochard
Aythya ferina

Common Potoo
Nyctibius griseus

Common Scoter
Melanitta nigra

common sense
bom senso

Common Shelduck
Tadorna tadorna

Common Snipe
Gallinago gallinago

Common Swift
Apus apus

Common Tailorbird
Orthotomus sutorius

Common Tern
Sterna hirundo

denominator
common denominator

GCF
greatest common factor

GCM
greatest common measure

HCF
highest common factor

LCM
lowest common multiple

SCR
senior common room