Difficult IELTS Words - Group 3

[Esc] (1)
n. ornamental tuft or ridge on the head of animal; plume used as decoration on top of helmet; top, as of a hill or wave

[Esc] (2)
n. curator; guardian

[Esc] (3)
v. lead forth or out; take away, separate, or remove, in numbering, estimating, or calculating; subtract

[Esc] (4)
v. reduce level; lower grade of something

[Esc] (5)
v. become worse; decline

[Esc] (6)
v. analyze; examine; identify

[Esc] (7)
n. act or process of identifying or determining the nature and cause of a disease or injury

[Esc] (8)
v. dwindle; reduce; make smaller or less or to cause to appear so

[Esc] (9)
n. electronic device that restricts current flow chiefly to one direction; semiconductor that consists of a p-n junction

[Esc] (10)
v. detect; perceive