CM
Common Metre

COBOL
common business-oriented language

common
the common reader

Common Babbler
Argya caudata

Common Chaffinch
Fringilla coelebs

Common Chiffchaff
Phylloscopus collybita

Common Chlorospingus
Chlorospingus flavopectus

Common Crane
Grus grus

Common Cuckoo
Cuculus canorus

Common Gull
Larus canus

Common Jery
Neomixis tenella

Common Kestrel
Falco tinnunculus

Common Loon
Gavia immer

Common Merganser
Mergus merganser

Common Miner
Geositta cunicularia

Common Murre
Uria aalge

Common Nightingale
Luscinia megarhynchos

Common Pochard
Aythya ferina

Common Potoo
Nyctibius griseus

common sense
bom senso

Common Starling
Sturnus vulgaris

Common Swift
Apus apus

Common Tern
Sterna hirundo

Common Woodshrike
Tephrodornis pondicerianus

denominator
common denominator

GCF
greatest common factor

GCM
greatest common measure

HCF
highest common factor

LCM
lowest common multiple

SCR
senior common room