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.nounAn act or instance of making or becoming open."He remembered fondly the Christmas morning opening of presents."
16.nounSomething that is open."A salamander darted out of an opening in the rocks."
17.nounAn act or instance of beginning."Their opening of the concert with Brass in Pocket always fires up the crowd."
18.nounSomething that is a beginning.
19.nounA vacant position, especially in an array."Are there likely to be any openings on the Supreme Court in the next four years?"
20.nounAn opportunity, as in a competitive activity.
21.nounIn mathematical morphology, the dilation of the erosion of a set.
22.adjectivePertaining to the start or beginning of a series of events."The opening theme of Beethoven's Fifth Symphony is, perhaps, the most recognizable in all of European art music."
23.adjectiveDescribing the first period of play, usually up to the fall of the first wicket; describing a batsman who opens the innings or a bowler who opens the attack