開 (Kanji for open) | KANJIDAMAGE

Onyomi

KAI

A KITE flies through the open gate.

( を ) あ＊ける	I open something (door, envelope) ★★★★★
( が ) あ＊く	to get opened - the automatic doors swung open ★★★☆☆
( を ) ひら＊く	hold a party or call a meeting. Open the way for something to happen. ★☆☆☆☆

公開(こうかい) する

open to the public ★★★☆☆
公 (public) + 開 (open) = 公開 (open to the public)

開発(かいはつ)

development ★☆☆☆☆
開 (open) + 発 (launch) = 開発 (development)

cultivation, development or exploitation of a country or resource.

開催(かいさい) する

host the Olympics ☆☆☆☆☆
開 (open) + 催 (sponsor) = 開催 (host the Olympics)

host a big event like the Olympics