Difficult IELTS Words - Group 9

[Esc] (1)
a. of or relating to the occasional use, asserted not to be addictive, of narcotics; engaged in as a pastime, for fun or pleasure

[Esc] (2)
n. a parallelogram with four right angles

[Esc] (3)
v. purify; make more precise; improve

[Esc] (4)
n. ability to recover quickly from illness, change, or misfortune; buoyancy

[Esc] (5)
n. breathing; process of inhaling and exhaling; oxidative process occurring within living cells

[Esc] (6)
n. wavelike motion; undulation; sound like that of water running over a stony bottom

[Esc] (7)
v. become active; excite, as to anger or action; stir up; awaken

[Esc] (8)
a. country; relating to rural areas

[Esc] (9)
n. a stock certificate or bond, a document indicating ownership or creditor-ship; safety

[Esc] (10)
v. pass gradually or leak through, as if through small openings