open ly On /'aupanli; NAmE'on-/ adv. without hiding any feelings, opinions or information £• JF      lit Wife: Can you talk openly about sex with

your parents?      0 The

men in prison would never cry openly (= so that other people could see).

.open 'market noun [sing.] a situation in which companies can trade without restrictions, and prices depend on the amount of goods and the number of people buying them A?F X ^; g & rfi%j: to buy/sell/ trade on the open market £ g & Tfc 3^/±^ /Ml 3ci? .open 'mike noun [U] an occasion in a club when anyone can sing, play music or tell jokes £ (

open-mike night

.open-'minded adj. willing to listen to, think about or accept different ideas M % ft Xf^I M i*L EH3 narrow-minded open-'minded-ness noun [U] .open-'mouthed adj. with your mouth open because you are surprised or shocked (p (ft, gf

.open-'necked (also .open-'neck) adj. (of a shirt MA) worn without a tie and with the top button undone

open ness /'aupannas; NAmE 'ou-/ noun [U] 1 the quality of being honest and not hiding information or feelings ig$ 2 the quality of being able to think about, accept or listen to different ideas or people #J no jk ; JF 0J 3 the quality of not being confined or

covered JFll; frM; XiiM .open- pit adj. {NAmE) = opencast .open-'plan adj. an open-plan building or area does not have inside walls dividing it up into rooms if M. A W;       XPilBlW: an open-plan office

.open prison {BrE) {NAmE .minimum se curity prison)

noun a prison in which prisoners have more freedom than in ordinary prisons JFSfc jUSM ( ^BAtHl g & Fi$'J

mk>

.open sandwich noun a sandwich which is served on a plate with no top piece of bread       ( TcMM

)

open season noun [sing.] 1 ~ (for sth) the time in the year when it is legal to hunt and kill particular animals or birds, or to catch fish, for sport (       ) tiHa ifM.0

1? KI23 close season 2 ~ for/on sb/sth a time when there are no restrictions on criticizing particular groups of people or treating them unfairly (     FBXfrlJ )

WikJF$tiK], g &    : It seems to be open season on

teachers now.      g iff

.open 'sesame noun [sing.] an easy way to gain or achieve sth that is usually very difficult to get if H % in; iltTXIx; MftvE: Academic success is not always an open sesame to a well-paid job. A $ A it $ 5ff % & Ji: KTmreTTTl From the fairy tale Ali Baba and the Forty Thieves, in which the magic words open sesame had to be said to open the cave where the thieves kept their treasure. M         07 SEE

*mn]+A&> o    “%.m, mv , a&mm

open-'source adj. {computing if) used to describe soft­ware for which the original source code is made available to anyone ( Deft ) TFJfttifWM, lift#6

m

'open syllable noun {phonetics i§^) a syllable which does not end with a consonant, for example so if ^ A

(       in so)

.open-'toed adj. (of shoes $£) not covering the toes M &tf$: open-toed sandals Sg^SjCll .open-'top (also .open-'topped) adj. {BrE) (of a vehicle iH3bX) having no roof

.open 'verdict noun an official decision in a British court stating that the exact cause of a person’s death is not known

0TTO*iJi* )

opera /'Dpra; NAmE 'aipra/ noun 1 [C, U] a dramatic work in which all or most of the words are sung to music; works of this type as an art form or entertain­ment ttH; Ml JgiJA; Mj~£A: Puccini’s operas #

0 to go to the opera      0 an opera singer

ft M'J M M <> light/grand opera $£ / A ffc Mil — see also soap opera 2 [C] a company that performs opera; a building in which operas are performed ffc J$J gEj; Hfc Jgij K: the Vienna State Opera III ^ffc|}!] K ► oper-

at-ic /,Dpa'raetik; NAmE ,a:p-/ adj.: operatic arias/com- posers MJl&nJUJI / tFffiifc

op er able /'Dparabl; NAmE 'a:p-/ adj. 1 that functions; that can be used jzifFftfj;        When

will the single currency be operable? ff A         7ft

rf5 ? 2 (of a medical condition E ff <5t) that can be treated by an operation A tU^tlXAlW r«TJi3 inoperable 'opera glasses noun [pi.] small binoculars that people use in a theatre to see the actors or singers on the stage

'opera house noun a theatre where operas are performed ffcjgij

op erand /'nparaend; NAmE 'a:p-/ noun {mathematics W) the number on which an operation is to be done # ft

»; mnw

op er ate On /'Dpareit; NAmE 'a:p-/ verb

                MACHINE fjf 1 [V] to work in a particular way

X # HT1 function : Most domestic freezers operate at below -18°C.          18

To 0 Solar panels can only operate in sunlight. AP0f^ 0 AT^fF'ffl o o (figurative) Some people can only operate well under pressure. W^AR^f^JEfcA T iT X ff % htf o 2 [VN] to use or control a machine or make it work       p\;      : What skills are

needed to operate this machinery? fF iX # F/l tl tw1^ fF

                SYSTEM/PROCESS/SERVICE       M#.; J3R# 3 to be used

or working; to use sth or make it work ( M • ).$*■#!;

( ® ) is :      [V] A new late-night service is now

operating. M fr. fl &—M ff W U ^|R         0 0 The regulation

operates in favour of married couples.

0 [VN] The airline operates flights to 25 countries. &25    0

France operates a system of subsidized loans to dairy farmers.

                OF BUSINESS/ORGANIZATION Xik;   4 [V] to work in

a particular way or from a particular place (

Hik: They plan to operate from a new office in Edinburgh. M l it M T Fi (ft IF A ^ M

# 0 0 Illegal drinking clubs continue to operate in the city,

                MEDICAL I 5 [V] ~ (on sb) (for sth) to cut open sb’s

body in order to remove a part that has a disease or to repair a part that is damaged X A : The doctors operated last night. EXflFSMXATo 0 We will have to operate on his eyes.    ^jXA0

                OF SOLDIERS !   6 [V] to be involved in military

activities in a place (    Troops

are operating from bases in the north. pPIAlEAUbnPIliik

'operating system noun a set of programs that controls the way a Computer works and runs other programs ( if^lfl ) FiftXJi 'operating table noun a special table that you lie on to have a medical operation in a hospital X A a : The patient died on the operating table {= during an oper­ation). ^A^EIeXA^Xo

'operating theatre (also theatre) (both BrE) {NAmE operating room) noun a room in a hospital used for medical operations XA^ op er ation Our /.Dpa'reijn; NAmE ,a:p-/ noun

MEDICAL fr ff 1 (also BrE informal op) [C] ~ (on sb) (for sth) | ~ (to do sth) the process of cutting open a part of a person’s body in order to remove or repair a damaged part XA: an operation on her lung to remove a tumour AMftWnPI+^tUI^XA 0 Will I need to have an operation? Hcflic^XA^? 0 He underwent a three-hour heart operation, ffe ^ 7 X X X Bf (HJ A' Ift X A o 0 Doctors performed an emergency operation for