Japanese Technology Vocabulary: Smartphones, Computers, and the Internet

Technology is everywhere in Japanese daily life. This guide covers essential tech vocabulary — from smartphones and computers to social media and online life.

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At a Glance

JapaneseReadingMeaning
スマートフォンsumatofonSmartphone
アプリapuriApp
パソコンpasokonPC / computer
インターネットinta-nettoInternet
ダウンロードdaunro-doDownload
アップロードappuro-doUpload
充電じゅうでん (juuden)Charging / charge
パスワードpasuwa-doPassword

Social Media and Communication

• LINE — The dominant messaging app in Japan | ツイッター / X — Twitter/X | インスタグラム — Instagram | ユーチューブ — YouTube | 投稿する (とうこうする, toukou suru) — Post (content) | フォローする — Follow | いいね — Like (heart)

Tech Problems

バッテリーが切れそうです。 — My battery is about to die.

インターネットが繋がりません。 — The internet won’t connect.

アプリがフリーズしました。 — The app froze.

Wi-Fiのパスワードを教えてください。 — Please tell me the Wi-Fi password.

Yuka

Why is LINE so popular in Japan instead of WhatsApp?

Rei

LINE was launched in Japan in 2011 and became hugely popular very quickly — partly because it was free to use and had cute stickers from the start! It’s now used for everything: chatting, calling, bill splitting, paying (LINE Pay), and even government services. WhatsApp has less than 10% market share in Japan.

Yuka

Are there Japanese tech words that aren’t from English?

Rei

Some! 電子メール (でんしメール, denshi me-ru) = email (formal). 携帯電話 (けいたいでんわ, keitai denwa) = mobile phone (official). But most Japanese tech vocabulary is katakana loanwords — Japan adopted foreign tech terms directly. Interestingly, some terms differ from English: ‘copy and paste’ = コピペ (kopippe, shortened from copy + paste).

5 Practice Sentences

#JapaneseEnglish
1スマホの充電が10%を切ってしまいました。My smartphone battery has dropped below 10%.
2このアプリをダウンロードしてください。Please download this app.
3LINEのIDを交換しましょう。Let’s exchange LINE IDs.
4インターネットに繋がりません。パスワードを教えてもらえますか?I can’t connect to the internet. Could you tell me the password?
5インスタにこの写真を投稿してもいいですか?Is it okay to post this photo on Instagram?

Quick Quiz

1. What is the dominant messaging app in Japan? → LINE

2. How do you say “my battery is about to die”? → バッテリーが切れそうです

3. What does 投稿する (toukou suru) mean? → To post content (on social media)

Practice in the Comments!

Try using one of today’s words in a sentence in the comments! Join the Top Commenters ranking!

Keep Learning: Vocabulary Hub | Katakana Foreign Words | Japanese Loanwords


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