diminution

Từ điển Oxford Advanced Learner 8th

dim·in·ution AW BrE [ˌdɪmɪˈnjuːʃn] NAmE [ˌdɪmɪˈnuːʃn] noun ~ (of/in sth) (formal)
1. uncountable the act of reducing sth or of being reduced
•the diminution of political power
2. countable, usually singular a reduction; an amount reduced
•a diminution in population growth

Word Origin:
[diminution] Middle English: via Old French from Latin deminutio(n-), from the verb deminuere, from minuere ‘make small’.

• Từ đồng nghĩa / Synonyms:
  decrease, reduction, step-down, decline
• Từ trái nghĩa / Antonyms:
  increase, step-up, augmentation