–adjective

1.	operating under the direct control of, or connected to, a main computer.

2.	connected by computer to one or more other computers or networks, as through a commercial electronic information service or the Internet.

3.	of or denoting a business that transmits electronic information over telecommunications lines: an on-line bookstore.

4.	available or operating on a computer or computer network: an on-line dictionary.

5.	by means of or using a computer: on-line shopping.

6.	Radio. (of a network) supplying affiliated stations with all or a substantial part of their programming.

7.	Television. of or pertaining to the final editing of a videotaped program.

8.	done or accomplished while in operation or active service: on-line maintenance.

9.	located on major routes or rail lines: on-line industries.

–adverb

10.	with or through a computer, esp. over a network.

–verb (used without object)

1.	to play at any game of chance for money or other stakes.

2.	to stake or risk money, or anything of value, on the outcome of something involving chance: to gamble on a toss of the dice.

–verb (used with object)

3.	to lose or squander by betting (usually fol. by away): He gambled all his hard-earned money away in one night.

4.	to wager or risk (money or something else of value): to gamble one's freedom.

5.	to take a chance on; venture; risk: I'm gambling that our new store will be a success.

–noun

6.	any matter or thing involving risk or hazardous uncertainty.

7.	a venture in a game of chance for stakes, esp. for high stakes.