Definitions
1.verbTo make something accessible or allow for passage by moving from a shut position."Turn the doorknob to open the door."
2.verbTo make (an open space, etc.) by clearing away an obstacle or obstacles, in order to allow for passage, access, or visibility."He opened a path through the undergrowth."
3.verbTo bring up, broach."I don't want to open that subject."
4.verbTo enter upon, begin."to open a case in court, or a meeting"
5.verbTo spread; to expand into an open or loose position."to open a closed fist"
6.verbTo make accessible to customers or clients."I will open the shop an hour early tomorrow."
7.verbTo start (a campaign)."Vermont will open elk hunting season next week."
8.verbTo become open."The door opened all by itself."
9.verbTo begin conducting business."The shop opens at 9:00."
10.verbTo begin a side's innings as one of the first two batsmen.
11.verbTo bet before any other player has in a particular betting round in a game of poker."After the first two players fold, Julie opens for $5."
12.verbTo reveal one's hand."Jeff opens his hand revealing a straight flush."
13.verb(of a file, document, etc.) To load into memory for viewing or editing.
14.verbTo disclose; to reveal; to interpret; to explain.
15.noun(with the) Open or unobstructed space; an exposed location."I can't believe you left the lawnmower out in the open when you knew it was going to rain this afternoon!"
16.noun(with the) Public knowledge or scrutiny; full view."We have got to bring this company's corrupt business practices into the open."
17.nounA defect in an electrical circuit preventing current from flowing."The electrician found the open in the circuit after a few minutes of testing."
18.nounA sports event in which anybody can compete"the Australian Open"