Difficult IELTS Words - Group 11

[Esc] (1)
n. brass musical instrument with brilliant tone

[Esc] (2)
v. write under something else; subscribe; assume financial responsibility for; guarantee against failure

[Esc] (3)
v. integrate; make into or become one unit

[Esc] (4)
a. involving or affecting only one side

[Esc] (5)
a. expensive or of high quality; appropriate for people with good incomes

[Esc] (6)
v. change aspect of; alter in form, appearance, substance, position; make different by a partial change; modify

[Esc] (7)
v. freshen; circulate through and freshen

[Esc] (8)
n. difference in electrical charge between two points

[Esc] (9)
n. a piece of substantiating evidence; proof; written authorization or certificate

[Esc] (10)
v. grieve or protest loudly and bitterly; express sorrow by a mournful vocal sound; moan; cry