known

1 known
1 known
Britannica Dictionary definition of KNOWN
past participle of 1know
2 known /ˈnoʊn/ adjective
2 known
/ˈnoʊn/
adjective
Britannica Dictionary definition of KNOWN
1 
always used before a noun
a  : generally accepted as something specified
b  : included in the knowledge that all people considered as one group have
2 
: familiar to people — used with little, widely, etc.
— see also well-known

known quantity

— see quantity