n.
an unsaturated acid (C4H6O2) used to make resins and plastics

be wide open Idiom, Proverb

for openers

as a first activity, to begin For openers, let's discuss the budget. It's very important.

if a mussel doesn't open don't eat it

if you force things to happen you may regret it, leave well enough alone If you force a child to talk, you may regret it. As they say, If a mussel doesn't open, don't eat it.

keep an eye open

(See keep an eye out)

keep an open mind

be fair to all opinions, avoid prejudging I keep an open mind when I talk to you - open to all opinions.

leave the door open

allow people to reply, invite a response, feel free to reply If you offer to provide answers to their questions, you leave the door open for a reply.

leave yourself open

not protect yourself, allow people to hurt you By coming late to work, he left himself open to discipline.

open a can of worms

(See can of worms)

open a window

find a new way of looking at a topic or problem That idea opens a window on the causes of war. What do you see?

open and shut

easy to judge, not complex If either spouse admits adultery, divorce is an open and shut case.

open mind

(See keep an open mind)

be advanced open

1. Literally, to be absolutely open, as of a aperture or window. No admiration it's aerial in here—the window is advanced open!2. To accept abounding accessible outcomes or options available. With so abounding outstanding teams in the playoffs this year, the acreage is advanced open. Now that you accept your degree, the future's advanced accessible to you!3. slang In sports, to be far abroad from defenders and accessible to calmly accept a pass. Come one, canyon it to me, I'm advanced open! Didn't you see that your receiver was advanced open?4. slang To be beat with crime. Our burghal acclimated to be advanced open, until the new badge abettor and started accepting abyss off the streets.Learn more: open, wide

be advanced open

If a challenge or antagonism is advanced open, it is actual difficult to say who will win because the competitors are all appropriately good. Both acclamation announce that the acclamation chase is still advanced open. The antagonism has been befuddled advanced accessible by the absence of the apple champion.Learn more: open, wide

be advanced ˈopen

(of a competition, an election, etc.) with no accessible winner: The presidential acclamation is advanced open. OPPOSITE: a one-horse raceLearn more: open, wide

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More Idioms/Phrases

one up on someone one-upmanship onto something onto us oodles open a can of worms open a window open and shut open mind open one open season open secret open some doors open to criticism open to question open up OR