US: /ɹəˈdus/, /ɹiˈdus/, /ɹɪˈdus/
UK: /ɹɪdjˈuːs/

English Vietnamese dictionary

reduce /ri'dju:s/
  • ngoại động từ
    • giảm, giảm bớt, hạ
      • to reduce speed: giảm tốc độ
      • to reduce prices: giảm (hạ) giá
      • to reduce the establishment: giảm biên chế; giảm ngân sách cơ quan
    • làm nhỏ đi, làm gầy đi, làm yếu đi
      • to be reduced to a shadow (skeleton): gầy đi chỉ còn là một bộ xương
      • to be greatly reduced by illness: ốm gầy đi nhiều
    • làm nghèo đi, làm cho sa sút
      • to be in reduced circumstances: bị sa sút
    • làm cho, khiến phải, bắt phải
      • to reduce to silence: bắt phải im lặng
      • to reduce to submission: bắt phải phục tùng
    • đổi, biến đổi (sang một trạng thái, hình thức đơn giản hơn, kém hơn)
      • to reduce something to ashes: biến vật gì thành tro bụi
    • giáng cấp, hạ tầng công tác (một sĩ quan)
      • to reduce an officer to the ranks: giáng cấp một sĩ quan xuống làm lính thường
    • chinh phục được, bắt phải đầu hàng
      • to reduce a province: chinh phục được một tỉnh
      • to reduce a fort: bắt một pháo đài để đầu hàng
    • (y học) chữa, bó (xương gây), nắn (chỗ trật khớp)
    • (hoá học) khử
    • (toán học) rút gọn; quy về
      • reduced characteristic equation: phương trình đặc trưng rút gọn
    • (kỹ thuật) cán dát (kim loại); ép, nén
    • nội động từ
      • tự làm cho nhẹ cân đi (người)

    Advanced English dictionary

    + verb
    1 [VN] ~ sth (from sth) (to sth)
    ~ sth (by sth) to make sth less or smaller in size, quantity, price, etc: Reduce speed now (= on a sign). + Costs have been reduced by 20% over the past year. + Giving up smoking reduces the risk of heart disease. + The number of employees was reduced from 40 to 25.
    2 [VN, V] if you reduce a liquid or a liquid reduces, you boil it so that it becomes less in quantity
    3 [V] (AmE, informal) to lose weight by limiting the amount and type of food that you eat: a reducing plan
    Idioms: reduced circumstances the state of being poorer than you were before. People say 'living in reduced circumstances' to avoid saying 'poor'.
    Phrasal Verbs: reduce sb/sth (from sth) to sth / to doing sth [usually passive] to force sb/sth into a particular state or condition, usually a worse one: a beautiful building reduced to rubble + She was reduced to tears by their criticisms. + They were reduced to begging in the streets.
    reduce sth to sth to change sth to a more general or more simple form: We can reduce the problem to two main issues.

    Thesaurus dictionary

    1 cut (back), cut down (on), decrease, diminish, moderate, abate, lessen, shorten, truncate, abbreviate, abridge, curtail, crop, trim, compress, restrict, limit, stunt:
    We must reduce expenses this year.
    2 ease (up on), let up (on), decrease, mitigate, tone down, slacken up (on):
    It will reduce the burden of your costs if you share with me.
    3 lose weight, slim (down), diet, trim down, Chiefly US slenderize:
    You'll have to reduce to fit into that dress, Betty.
    4 change, modify, adjust, turn, convert; break down or up, grind, rub, triturate, pulp, powder:
    Payment of the debt reduced me to poverty. The first step is to reduce the liquid to a thick extract
    5 cut, decrease, trim, bring down, lower, drop, mark down, slash, Colloq knock down:
    The prices on these shoes have been reduced for a quick sale.
    6 demote, degrade, lower, downgrade, break; humble; Military US and Canadian bust:
    He was reduced in rank from sergeant to private.
    7 diminish, lessen, bring down, depreciate, subdue, belittle, minimize:
    He was reduced in her estimation when she saw the deprecating way his friends treated him
    8 Medicine set, adjust, reset:
    The doctor caused little pain when he reduced her dislocated finger.

    Collocation dictionary


    considerably, dramatically, drastically, greatly, sharply, significantly, substantially | further | slightly
    We need to reduce the speed slightly.
    | gradually, progressively
    Legislation progressively reduced the number of situations in which industrial action could be taken.


    aim to, attempt to, seek to, try to | help (to)
    Giving up smoking helps reduce the risk of heart disease.
    | manage to | be designed to, be intended to | be expected to, be likely to


    Pollution from the works has been reduced by 70 per cent.
    | from, to
    The price is reduced from 99p to 85p.


    an attempt/effort to reduce sth, measures to reduce sth, reduce sth to a minimum
    The risks must be reduced to the absolute minimum.

    Concise English dictionary

    reduces|reduced|reducingrɪ'duːs /-'dju-
    +cut down on; make a reduction in
    +make less complex
    +bring to humbler or weaker state or condition
    +simplify the form of a mathematical equation of expression by substituting one term for another
    +lower in grade or rank or force somebody into an undignified situation
    +be the essential element
    +reduce in size; reduce physically
    +lessen and make more modest
    +make smaller
    +to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons
    +narrow or limit
    +put down by force or intimidation
    +undergo meiosis
    +reposition (a broken bone after surgery) back to its normal site
    +reduce in scope while retaining essential elements
    +be cooked until very little liquid is left
    +cook until very little liquid is left
    +lessen the strength or flavor of a solution or mixture
    +take off weight