(historical) Seven Ancient Greek men renowned for their wisdom: Thales, Solon, Periander, Cleobulus, Chilon, Bias, and Pittacus.

(In both the 12-hour clock and the 24-hour clock) The start of the eighth hour of the day; 7:00 a.m. (07:00). / (Only in the 12-hour clock) The start of the twentieth hour of the day; 7:00 p.m. (19:00).

The cardinal number occurring after six hundred ninety-nine and before seven hundred one, represented in Arabic numerals as 700.

(Catholicism) The sacred counterparts of the seven deadly sins.

(India) The jungle babbler, Turdoides striata, habitually flocking in extended family groups.

(business) A group of seven oil companies that dominated the global petroleum industry from the mid-1940s to the 1970s.

(poetic) All of the oceans of the world. (In a common modern interpretation, the seven seas are the North and South Atlantic, North and South Pacific, Indian, Arctic and Antarctic, but historical interpretations differ widely; see the Wikipedia article for this.)

7,000

(gambling, dice games) in the game of craps, to roll a seven after having established the "point".

(biblical) The seals that secure the book or scroll that John of Patmos saw in an apocalyptic vision.