1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
Etymology Explore the origin of the 'core words'.
Wordsense Learn about the wordsenses of the english term.

TOPIK 11000 KOREAN WORDS

HSK 3.0 11000 CHINESE WORDS

ENGLISH 6000 THEME WORDS

OXFORD 5000 CORE WORDS

TANAKA 6000 CORE WORDS

It took half an hour .

Phải mất nửa giờ.
I have been waiting for almost half an hour .

Tôi đã đợi gần nửa tiếng rồi.
Let's break off for half an hour and have some coffee .

Hãy nghỉ ngơi trong nửa giờ và uống một ít cà phê.
He made me wait for about half an hour .

Anh ấy bắt tôi đợi khoảng nửa tiếng.