(헷갈리는 영어 단어) extend, extent, expend, expand

"extend"

연장하다, 늘이다, 확장하다

to stretch out; draw out; to place at full length; to increase the length or duration

*extension: 확대, Extension: 호텔 숙박 연장, 호텔 내 구내전화

"extent"

크기,정도,넓이

the space or degree to which a thing extends; length, area, volume, scope

"expend"

소비하다, 지출하다

to use up; spend; to pay out

*expense: 돈, 비용 / expenditure: 지출, 비용, 경비

"expand"

확장하다, 확대하다, 넓히다, 전개하다, 자세히 말하다

to increase in extent, size, volume, scope, etc; to spread or stretch out;

to express in fuller form or greater detail; develop

*expansion: 확대, 확장, 팽창