open

開いている

人や物が出入りできる隙間や入り口がある。

やさしい英語で： With a space or gap that allows someone or something to go in or out.

• The window is open.
• She left the box open on the table.
• Keep your mouth open while I check your teeth.

反対語： closed, shut

よく使う表現： open door, wide open, leave something open, open gate

営業中の、利用できる

人が入って買い物をしたり、施設を利用したりできる。

やさしい英語で： Ready for people to enter, buy things, or use its facilities.

• The shop is open.
• Is the library open on Sundays?
• The restaurant stays open until midnight.

使い方： open for something (The new cafe is open for business.); open to someone (The pool is open to hotel guests.)

反対語： closed

よく使う表現： open for business, open all day, open until midnight, open on Sundays

オープンソースの

プログラムのコードを見ること、使うこと、変更することが許されている。

やさしい英語で： With computer code that people are allowed to see, use, and change.

• The project’s code is open.
• Developers can improve this open software together.
• We chose an open platform with publicly available code.

類義語： open-source

反対語： closed-source

よく使う表現： open code, open software, open source

開ける、開く

ドアやふたなどを動かし、出入りや中へのアクセスを可能にすること。

やさしい英語で： To move a door, lid, or similar thing so that people or things can pass through.

• Please open the door.
• She opened the window to let air in.
• Turn this handle to open the valve.

使い方： open something for someone (He opened the gate for us.)

反対語： close, shut

よく使う表現： open the door, open a window, open the valve, open the gate

開店する、開業する

店などを客に対応できる状態にする、または営業を始めること。

やさしい英語で： To get a business ready to serve customers, or begin serving them.

• We open at nine.
• She opened the shop early today.
• The new cafe will open next month.

使い方： open for business (The restaurant opens for business tomorrow.); open at + time (The shop opens at eight.)

反対語： close

よく使う表現： open the shop, open for business, open at nine

開く、切り開く

障害物を除き、通ったり見渡したりできるようにすること。

やさしい英語で： To remove things that block a place, so people can pass through or see it.

• Workers opened the road by clearing fallen trees.
• The ship opened a channel through the ice.
• Removing the bushes opened a view of the lake.

類義語： clear, unblock

反対語： block

よく使う表現： open a path, open the road, open a channel

屋外、開けた場所

人や物を覆ったり守ったりするものがない、外の場所。

やさしい英語で： A place outside where nothing covers or protects you or your things.

• We slept out in the open.
• Do not leave your tools in the open.
• The deer stepped into the open.

使い方： in the open (The animals were standing in the open.)

よく使う表現： in the open, into the open

公の場

隠されていたことや秘密が人々に知られた状態。

やさしい英語で： A situation in which people know about something that was hidden or secret.

• The truth is finally out in the open.
• Her report brought the problem into the open.
• We need to get these concerns out in the open.

使い方： bring something into the open (The interview brought their disagreement into the open.)

よく使う表現： in the open, into the open