Japanese is not necessary for a successful Japan trip — English signage, translation apps, and the general goodwill of Japanese service workers compensate well. But even 20 words of Japanese opens doors, produces smiles, and builds connections that improve every interaction. These are the phrases that actually matter.
The Non-Negotiable Core (Learn These)
Sumimasen (すみません): "Excuse me" — the most useful word in Japan. Use it to get attention, apologize for bumping into someone, pass through a crowd. Pronounced "soo-mee-mah-sen."
Arigatou gozaimasu (ありがとうございます): "Thank you very much" — used constantly and always appreciated. Casual version: Arigatou (ah-ree-gah-toh).
Onegaishimasu (おねがいします): "Please" — added to any request to make it polite. Pointing at a menu item and saying this is enough to order anywhere.
Ikura desu ka? (いくらですか): "How much is it?" — essential for markets and small shops without clear pricing.
Doko desu ka? (どこですか): "Where is it?" — add the destination: "Eki wa doko desu ka?" (where is the station?).
Kudasai (ください): "Please give me" — "Kore wo kudasai" (this one please) while pointing works universally.
Wakarimasen (わかりません): "I don't understand" — honest and useful when someone speaks too quickly.
Eigo wo hanasemasu ka? (英語を話せますか): "Can you speak English?" — almost always answered with an apologetic gesture or directed to a colleague who can help.
At Restaurants
Itadakimasu (いただきます): Said before eating — a cultural gesture of gratitude for the meal. No translation needed; say it once before your first bite.
Gochisosama deshita (ごちそうさまでした): Said to staff when leaving a restaurant — "thank you for the meal." This small gesture is always noticed.
Okaikei onegaishimasu (お会計おねがいします): "The bill, please."
Osusume wa nan desu ka? (おすすめは何ですか): "What do you recommend?"
Kore wa nan desu ka? (これは何ですか): "What is this?"
Karui wa arimasu ka? (辛くないものありますか): "Is there something not spicy?" (useful for those avoiding heat).
At Hotels and Ryokan
Chekku-in onegaishimasu: "Check-in please."
Heya wa doko desu ka?: "Where is my room?"
Onsen wa doko desu ka?: "Where is the onsen?"
On Transport
[Destination] ni ikitai desu: "I want to go to [destination]." Show on your phone if pronunciation is uncertain.
Kono densha wa [destination] ni tomarimasu ka?: "Does this train stop at [destination]?"
Atatamete kudasai (あたためてください): "Please heat this up" — at convenience stores with microwavable food.
Emergency and Medical
Tasukete kudasai!: "Help please!" — emergency call for assistance.
Byoin wa doko desu ka?: "Where is the hospital?"
Arerugi ga arimasu (アレルギーがあります): "I have allergies" — follow with the allergen name.
Itai desu (痛いです): "It hurts" — point to the location.
The Google Translate Backup
For anything beyond these phrases: Google Translate's camera mode reads Japanese text in real-time. Download the Japanese language pack for offline use before you leave home. The app's voice translation is surprisingly accurate for slow, clear speech. Japanese keyboard input using romaji phonetics (type "a-ri-ga-to-u" and it converts) works in any app that accepts Japanese text.