開

Historical term

evacuation of school children (from major cities to more rural areas, esp. during late World War II)

Historical term

Japanese colonists of Manchuria and Inner Mongolia

Historical term

settlement of the American frontier; settlement of the Old West

Rare term

moonflower (Ipomoea alba)

Rare term

opening a door for a moment (esp. on the train, when someone's foot is stuck, etc.)

Rare term; Mathematics

involute

Rare term

to forcefully open up (a hole; in a wall, etc.)

Rare term

to speak frankly; to open one's heart

Rare term

to throw out (everything inside); to empty (e.g. a box)

Rare term

unguarded; frank; open

Rare term

very beginning of a book

Rare term

United Nations Development Programme

Rare term

United Nations Conference on Environment and Development

Transitive verb

to open (e.g. one's robe); to bare (e.g. one's chest); to expose

Intransitive verb

to open up (of clothing); to be exposed

Archaic; Transitive verb

to open wide (one's legs, eyes, mouth, etc.); to stretch