Japanese Open & Close Verbs: Hiraku vs Akeru vs Aku / Tojiru vs Shimeru vs Shimaru

there are windows, doors and Japanese words "open" and "close" Grammar

Did you know there are several different ways to say “open” and “close” in Japanese? Words like hiraku, akeru, and aku all translate as “open,” while tojiru, shimeru, and shimaru can all mean “close.”

The tricky part is knowing which one sounds natural in each situation. Let’s look at the differences with simple examples.

Here’s a quick summary if you just want the short answer.

Open verbs

If you want to…Use
Open or unfold a book, umbrella, flower, meeting, etc.開く (hiraku)
Open a door, window, lid, or curtain yourself開ける (akeru)
Say something opens by itself開く (aku)

Close verbs

If you want to…Use
Close a door, window, curtain, or bag yourself閉める (shimeru)
Say something closes by itself閉まる (shimaru)
Close or fold a book, umbrella, eyes, etc.閉じる (tojiru)

Open verbs: Hiraku vs Akeru vs Aku

開く (hiraku)

“Hiraku” conveys the image of something spreading out or unfolding in a broader.  It is the opposite of “tojiru” (to close) and usually refers to an opening that can be reversed to its original state.

Examples:

  • 本ほんを開ひらいてください。- Please open the book.
  • ドアを開ひらいて待まっていてください。- Open the door and wait.
  • 今朝けさ、花はなが開ひらきました。- This morning, the flowers bloomed.

開ける (akeru)

“Akeru” refers to removing something that covers or blocks. It can be used even if the object cannot return to its original state (e.g., a lid of a can). We also use this verb to open objects by sliding.

Examples:

  • 瓶びんの蓋ふたを開あけてくれますか?- Can you please open the bottle?
  • 暑あついので窓まどを開あけてください。- Please open the window, it’s hot.
  • 朝あさ起おきたらカーテンを開あけます。- I open the curtains when I wake up.

開く (aku)

This verb “aku” refers to something opening on its own, or becoming open due to some external force (e.g., a person or machine). It implies a state where one can freely enter or exit.

Examples:

  • 8時はちじに店みせが開ひらきます。- The store opens at 8:00.
  • 風かぜでドアが開ひらきました。- The door opened because of the wind.
  • ボタンを押おせば鍵かぎが開ひらきます。- The lock will open if you press the button.

Open Verbs Quick Review

VerbTypeTargetMeaning
hirakuBothBooks, umbrellas, etc.Opening something that is closed or folded.
akeruTransitiveLids, locks, curtains, etc.Opening something that is sealed, covered or locked.
Sliding to open.
akuIntransitiveStores, doors, etc.Opening automatically or in response to some action.

Notes

  • Depending on the context, different verbs may be applied. For example, you use “akeru” to open a door by yourself but “aku” or “hiraku” if it’s an automatic door. 
  • In some cases, two or more verbs may have nearly the same meaning. For example, “目めをひらく” and “目めをあける” both mean ‘to open one’s eyes.
  • There are also abstract uses that don’t fit into the examples above, such as “会議かいぎをひらく” (hold a meeting) or “心こころをひらく” (open one’s heart).

Close verbs: Tojiru vs Shimeru vs Shimaru

閉じる (Tojiru) 

“Tojiru” refers to closing something open or expanded.It is the opposite of “hiraku” (to open), and normally indicates something that can be reopened later.

Examples:

  • 本ほんを閉とじてください。- Please close the book.
  • 雨あめが止やんだので傘かさを閉とじました。- I closed the umbrella when the rain stopped.
  • 目めを閉とじたら寝ねられますよ。- You can sleep if you close your eyes.

閉める (Shimeru) 

“Shimeru” refers to intentionally closing something that was open or blocking an entrance or space. It can also mean sliding something shut, like curtains.

Examples:

  • 家いえを出でるときは鍵かぎを閉しめてください。- Please lock the door when you leave.
  • 寝ねる前まえにカーテンを閉しめました。- I closed the curtains before going to bed.
  • ゴミ袋ぶくろは閉しめてから外そとに出だしましょう。 Don’t forget to close the rubbish bag before taking it out.

閉まる (Shimaru)

“Shimaru” describes something closing automatically or being closed by external forces, such as a person or a machine, resulting in it being blocked or unable to pass through.

Examples:

  • 自動じどうドアが閉しまるので、気きを付つけてください。- Be careful, the automatic door will close.
  • 強つよい風かぜで窓まどが閉しまりました。- The window closed because of the strong wind.
  • お店みせは10時じゅうじに閉しまります。- The store closes at 10:00.

Close Verbs Quick Review

VerbTypeTargetMeaning
TojiruBothBooks, eyes, umbrellas, etc.Closing or folding something that is open.
ShimeruTransitiveBags, locks, windows, etc.Closing something that is unlocked, uncovered or blocking a space.
Sliding to close.
ShimaruIntransitiveDoors, windows, lids, etc.Automatically closing or being closed by some action.

Notes

  • Depending on the context, different verbs may be applied. For instance, you must use “shimeru” if you close the door by hand, but you say  “shimaru” if it’s an automatic door. Some might also use “tojiru” if it’s a hinged door.
  • Like with “open,” there are abstract uses that don’t fit the typical examples, such as “話はなしを閉とじる” (end a conversation) or “心こころを閉とじる” (close one’s heart).

As you can see, the verbs “hiraku,” “akeru,” “aku,” and “tojiru,” “shimeru,” and “shimaru” differ in grammatical classification and the kind of actions they describe. Understanding these differences will help you use Japanese more naturally and effectively!

Written by
Maru

✔ Professional Travel Planner
✔ Certified Japanese Language Teacher
✔ Japan Project Coordinator

Born in Tokyo, I have lived in many places both in Japan and abroad.

From planning trips to supporting projects in Japan, I’m here to make things easier, smoother, and more enjoyable, like a local friend you can always count on.

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