open

be open with speak frankly to; conceal nothing from.

an open book: see a closed bookatclosed.

the heavens opened: seeheaven.

in (or into) the open

1 out of doors; not under cover.

2 not subject to concealment or obfuscation; made public.

keep open house provide general hospitality.

1950Elizabeth GoudgeGentian Hill All well-to-do Devon farmhouses keep open house on Christmas Eve.

open-and-shut (of a case or argument) admitting no doubt or dispute; straightforward and conclusive.

open the door to: seedoor.

open someone's eyes: seeeye.

open sesame a marvellous or irresistible means of achieving access to what would normally be inaccessible.

☞ In the tale of Ali Baba and the Forty Thieves in the Arabian Nights, the door of the robbers' cave was made to open by uttering this magic formula.

open up a can of worms: seecan.

open your shoulders (in sport) give free play to the muscles of the shoulders in making a vigorous stroke.

2008Times of India Montanes held his opening serve in the fourth, but it was a lost cause as Federer opened his shoulders once again to grab the final break he needed two games later.

push at an open door: seepush.

with your eyes open (or with open eyes): seeeye.

with open arms: seearm.