ad|vise|ment /ædva I zmənt/ PHRASE If someone in authority takes a matter under advisement , they decide that the matter needs to be considered more carefully, often by experts. [AM , FORMAL ] □ I will take the suggestion under advisement, and refer it to the board.
ad|vis|er ◆◇◇ /ædva I zə r / (advisers ) also advisor N‑COUNT An adviser is an expert whose job is to give advice to another person or to a group of people. □ In Washington, the President and his advisers spent the day in meetings. □ …a careers adviser. [Also + to ]
ad|vi|so|ry /ædva I zəri/ (advisories )
1 ADJ [usu ADJ n] An advisory group regularly gives suggestions and help to people or organizations, especially about a particular subject or area of activity. [FORMAL ] □ …members of the advisory committee on the safety of nuclear installations.
2 N‑COUNT An advisory is an official announcement or report that warns people about bad weather, diseases, or other dangers or problems. [AM ] □ 26 states have issued health advisories.
ad|vo|ca|cy /æ dvəkəsi/
1 N‑SING Someone's advocacy of a particular action or plan is their act of recommending it publicly. [FORMAL ] □ [+ of ] I support your advocacy of free trade.
2 N‑UNCOUNT [usu N n] An advocacy group or organization is one that tries to influence the decisions of a government or other authority. [AM ]
ad|vo|cate ◆◇◇ (advocates , advocating , advocated ) The verb is pronounced /æ dvəke I t/. The noun is pronounced /æ dvəkət/. 1 VERB If you advocate a particular action or plan, you recommend it publicly. [FORMAL ] □ [V n] Mr Williams is a conservative who advocates fewer government controls on business. □ [V -ed] …the tax policy advocated by the Opposition.
2 N‑COUNT An advocate of a particular action or plan is someone who recommends it publicly. [FORMAL ] □ [+ of ] He was a strong advocate of free market policies and a multi-party system.
3 N‑COUNT An advocate is a lawyer who speaks in favour of someone or defends them in a court of law. [LEGAL ]
4 N‑COUNT An advocate for a particular group is a person who works for the interests of that group. [AM ] □ [+ for ] …advocates for the homeless.
5 → see also devil's advocate SYNONYMS advocate VERB 1
recommend: We strongly recommend reporting the incident to the police.
support: They support a total ban on imported coal
champion: The amendments had been championed by pro-democracy activists.
encourage: Their task is to help encourage private investment in Russia. NOUN 2
supporter: Bradley was a major supporter of the 1986 tax reform plan.
champion: He was once known as a champion of social reform.
proponent: Halsey was a leading proponent of the values of progressive education.
aegis /iː dʒ I s/ PHRASE Something that is done under the aegis of a person or organization is done with their official support and backing. [FORMAL ] □ The space programme will continue under the aegis of the armed forces.
aeon /iː ɒn/ (aeons ) in AM, use eon N‑COUNT An aeon is an extremely long period of time. □ Aeons ago, there were deserts where there is now fertile land.
aer|ate /eə re I t/ (aerates , aerating , aerated ) VERB To aerate a substance means to cause air or gas to pass through it. □ [V n] Aerate the soil by spiking with a fork.
aer|ial /eə riəl/ (aerials )
1 ADJ [ADJ n] You talk about aerial attacks and aerial photographs to indicate that people or things on the ground are attacked or photographed by people in aeroplanes. □ Weeks of aerial bombardment had destroyed factories and highways.
2 ADJ [ADJ n] You can use aerial to describe things that exist or happen above the ground or in the air. □ The seagulls swirled in aerial combat over the barges.
3 N‑COUNT An aerial is a device or a piece of wire that receives television or radio signals and is usually attached to a radio, television, car, or building. [BRIT ] □ …the radio aerials of taxis and cars. in AM, use antenna
aerie /e ri/ → see eyrie
PREFIX aero-
is used at the beginning of words, especially nouns, that refer to things or activities connected with air or movement through the air. For example, aerodynamics is the science of how objects move through the air.
aero|bat|ics /eə rəbæ t I ks/ The form aerobatic is used as a modifier. N‑PLURAL Aerobatics are skilful displays of flying, usually to entertain people watching from the ground.
aero|bic /eəroʊ b I k/ ADJ [usu ADJ n] Aerobic activity exercises and strengthens your heart and lungs. □ Aerobic exercise gets the heart pumping and helps you to burn up the fat.
aero|bics /eəroʊ b I ks/ N‑UNCOUNT [oft N n] Aerobics is a form of exercise which increases the amount of oxygen in your blood, and strengthens your heart and lungs. The verb that follows aerobics may be either singular or plural. □ I'd like to join an aerobics class to improve my fitness.
aero|drome /eə rədroʊm/ (aerodromes ) N‑COUNT [oft in names] An aerodrome is a place or area where small aircraft can land and take off. [BRIT ] in AM, use airdrome