c — ONAD · Shobdo

c /sē, si

▸ abbreviation

1 cent(s).

2 [in combination] (in units of measurement) centi-:

centistokes (cS).

3 (c.) century or centuries:

a watch case, 19th c.

4 (also c.) (preceding a date or amount) circa; approximately:

Isabella was born c. 1759.

5 (of water) cold:

all cabins have h & c.

6 colt.

▸ symbol Physics the speed of light in a vacuum:

E = mc2.