taste, used in cooking and for its oil #$$$£; A; ffliM 2 (also olive tree) [C] a tree on which olives grow olive groves MiA 3 (also .olive 'green) [U] a yellowish-green colour

madj. 1 (also .olive-'green) yellowish-green in colour

2 (of skin j£S£) yellowish-brown in colour MM

feft;   an olive complexion

'olive branch noun [usually sing.] a symbol of peace; sth you say or do to show that you wish to make peace with sb #■; ftl A ft fSi ®E: Management is holding out an olive branch to the strikers.       X##ibT

IfcKtto

.olive drab noun [u] a dull green colour, used in some military uniforms          X

WM)

.olive 'oil noun [u] oil produced from olives, used in cooking and on salad — see also extra virgin

ollie /'nli; NAmE 'aili/ noun (in skateboarding a jump that is done by pushing one foot down hard on the back of the board mi ( ftfe

j&JSfr.)

ology /‘Dlad3i; NAmE ’a:l-/ noun (pi. -ies) (informal, humorous) a subject of study          They come here with

their ologies knowing nothing about life. f&Cl^lr g Sift

*tA££p-AJX£n0

-ology (BrE also -logy) combining form (in nouns i^) 1 a subject of study Af4; ¥t g: sociology # o genealogy A if ^ 2 a characteristic of speech or writing phraseology 0 trilogy

-ological, -logical (also -ologic, -logic) (in adjectives pathological ^fSAft -ologist, -logist (in nouns j&jJf&itSiS]): biologist

Olym piad /a'limpiaed/ noun 1 an occasion when the modem Olympic games are held    US

^: The 26th Olympiad took place in Atlanta, Georgia.

2 an

international competition in a particular subject, espe­cially a science JI^EjkA^ ( #fflXf4A^Aftffl^tt; H ) : the 14th International Physics Olympiad % 14 jg

Olym pian /a'limpian/ adj. (formal) like a god; powerful and impressive^# ft; ^cAft; MJtft

Olympic /a'limpik/ adj. [only before noun] connected with the Olympic Games JI#Ei£S^{j^lft: an Olympic athlete/medallist JM*E%

the O.lympic Games (also the Olym pics) noun [pi ] an international sports festival held every four years in a different country H # E zjfj £•;       the

Beijing Olympics, held in 2008 * 2008 XXAAAflftll

om buds man /'Dmbudzman; -maen; NAmE 'aim-/ noun (pi. -men /-man/) a government official whose job is to examine and report on complaints made by ordinary people about the government or public authorities M

IISM (         M )

omega /’aumiga; NAmE ou’mega/ noun the last letter of the Greek alphabet (Q, co)

om elette (NAmE also om-elet) /‘Dmlat; NAmE 'aim-/ noun a hot dish of eggs mixed together and fried, often with cheese, meat, vegetables, etc. added         #|)U|

31,     ( #jJPA#5g&,      : a cheese and

mushroom omelette #3S&)|f3£3it4 ilTTBil you can’t make an .omelette without breaking eggs (saying) you cannot achieve sth important without causing a few small problems

omen /'auman; NAmE ‘ou-/ noun ~ (for sth) a sign of what is going to happen in the future Jjfijlfc; fj A; %% BCd PORTENT: a good/bad omen ^#ft / X#ft$jlftJ& 0 an omen of death/disaster AAV fttBHJk 0 The omens for their future success are not good. ftkClXA-J®

omi-cron /au'maikrnn; NAmE 'a:makra:n/ noun the 15th letter of the Greek alphabet (O, o) #J5^#^|ft|| 15 A

om in ous /'nminas; NAmE 'aim-/ adj. suggesting that sth bad is going to happen in the future M^kft;

(ft; X nr fij ft PSTH foreboding : There were ominous dark clouds gathering overhead. X # ft Pfi II £ A M ± tC Me O She picked up the phone but there was an ominous silence at the other end. fI)tfA.RXX#ft

tftlfio ► om-in-ous-ly adv.

omis sion /a’mijn/ noun 1 [u] ~ (from sth) the act of not including sb/sth or not doing sth; the fact of not being included/done H ; ft] ; 4Ei : Everyone was surprised at her omission from the squad.

o 0 The play was shortened by the omission of two scenes, lit Jgtf Mfl M T M Jfc „ 0 (formal) sins of omission (= not doing things that should be done)          2 [C] a thing that has not been included or

done jSiH; MM: There were a number of errors and omissions in the article.

omit /a'mit/ verb (-tt-) [VN] (formal) 1 ~ sth/sb (from sth) to not include sth/sb, either deliberately or because you have forgotten it/them ®J ; M ; it #; MM HT71 leave out : If you are a student, you can omit questions 16-18. njl^&'fift 16-18 Hu <> People were surprised that Smith was omitted from the team. AOliS Sjfti?,   2 [V to inf] to not do or

fail to do sth A#;          #: She omitted to mention

that they were staying the night, jtfe fife 41/4

Omni- /'nmm-; NAmE 'aim-/ combining form (in nouns, adjectives and adverbs J&& j^],. %§!] i^l) -of all things; in all ways or places          omnivore

f&'&rh'fUl O omnipresent omni-bus /'Dmmbas; NAmE 'aim-/ noun, adj. ia noun 1 (BrE) a television or radio programme that combines several recent programmes in a series ( A Iff >  : the 90-minute Sunday omnibus

edition * 90 g WM#]      2 a large book that

contains a number of books, for example novels by the same author ( £ A # ft & itt ) Cii,      3 (old-

fashioned) a bus

adj. (NAmE) including many things or different types of thing ^H£|$;       an omnibus law (

ft)'

omnidirectional /.Dmmda'rekjanl; -di'r-; -dai'r-; NAmE .aimni-/ adj. (technical A to) receiving or sending signals in all directions ( ) ^l&lft: an

omnidirectional microphone

om nipo tent /Dm'mpatant; NAmE aim-/ adj. (formal) having total power; able to do anything Jjfgft; Alt ft;' an omnipotent God         > om­

nipotence /-tans/ noun [U]: the omnipotence of God ±

omni pres ent /.nmm’preznt; NAmE .aim-/ adj. (formal) present everywhere A JA A £ ft;       These

days the media are omnipresent.

7f fr 0 ► omni-pres-ence /.Dmm'prezns; NAmE .aim-/

noun [U]

om nisci ent /ran'msiant; NAmE aim-/ adj. (formal) knowing everything A^A^Pft; Afg ft; t$ |4J A ft: The novel has an omniscient narrator. m — A ft £0 £. M ft          f ► om-nis-ci-ence /-sians/

noun [U]

omni vore /'Dmmvoi(r); NAmE 'aim-/ noun an animal or a person that eats all types of food, especially both plants and meat   A — compare carni­

vore, HERBIVORE, INSECTIVORE om niv orous /nm'mvaras; NAmE aim-/ adj. 1 (technical Ain) eating all types of food, especially both plants and meat ( A }§ )        , & $J US n£ ft — compare

CARNIVOROUS at CARNIVORE, HERBIVOROUS at HERBI­VORE 2 (formal) having wide interests in a particular area or activity A M A it ft : She has always been an omnivorous reader. M~-fo]|^imA@A&o Oil 0*w /pn; NAmE ain; oin/ prep., adv. mprep. i:i3U For the special uses of on in phrasal verbs, look at the entries for the verbs. For example turn on sb is in the phrasal verb section at turn. * on ^Ejfiilf^tj #P turn on sb *m& turn ftfei^^ialnP^o linor into a position covering,