The decade from 2060 to 2069.

The decade from 2090 to 2099.

The decade from 2040 to 2049.

The decade from 2030 to 2039.

plural of 22

(mobile telephony) Retronym referring to standards before 2.75G.

(organic chemistry) Abbreviation of 2,4-dinitrophenylhydrazine.

(colloquial) 24 hours per day, 7 days per week, 365 days out of the year (including February 29 in leap years, as well); constantly, without interruption, twenty-four seven, the entire year.

plural of 21700

plural of 2170