The most common Japanese word for polite speech is teineigo (丁寧語, teineigo), meaning “polite language.” It is the form used when you want to sound respectful without necessarily elevating the listener or lowering yourself.
For many learners, teineigo is the first useful step beyond basic Japanese. Its familiar sentence endings include です (desu) and ます (masu). For example, the plain form 食べる (taberu, to eat) becomes 食べます (tabemasu, eat / will eat) in polite speech.
Teineigo belongs to the wider system of keigo, or Japanese honorifics. Understanding the difference helps you choose language that fits the relationship, situation, and social distance.
What Is the Japanese Word for Polite Speech?
Teineigo is the Japanese word for a polite speech style that makes your language more formal and considerate. It is commonly used with people you do not know well, customers, teachers, colleagues, and others in situations where plain speech may sound too familiar.
The most visible change is often the sentence ending:
- Plain form: 食べる (taberu, to eat)
- Polite form: 食べます (tabemasu, to eat / will eat)
- Plain form: 行く (iku, to go)
- Polite form: 行きます (ikimasu, to go / will go)
Teineigo does not automatically mean “honorific language.” It changes the politeness level of your expression, but it does not necessarily show that the listener has higher status.
A useful way to think about it is that teineigo creates a respectful social distance. It is a safe default when you are still learning the relationship or setting.
Teineigo, Keigo, Sonkeigo, and Kenjōgo
Keigo is the broad category of respectful Japanese. Within it, teineigo is the polite style, while sonkeigo and kenjōgo communicate status in more specific ways.
Sonkeigo is honorific language used to raise the listener or another respected person. It changes the action of that person into a respectful form. For example, “to see” may become ご覧になります (goran ni narimasu, respectfully see).
Kenjōgo is humble language used to lower the speaker or the speaker’s group. It shows respect by presenting your own action modestly. For example, “to go” may become 伺います (ukagaimasu, humbly go / visit).
Bikago means beautified language. It often adds お or ご to make an expression sound refined, such as お茶 (ocha, tea) or ご飯 (gohan, meal / rice). Bikago is related to polite expression, but it is not the same as every form of keigo.
For a broader introduction, see Keigo Explained for Beginners: Japanese Honorifics. When you want to compare respectful and humble verbs, Keigo Japanese Verbs: Sonkeigo vs Kenjōgo is a useful next reference.
Japanese | Romaji | English meaning |
|---|---|---|
丁寧語 | teineigo | polite language |
敬語 | keigo | honorific language / respectful language |
尊敬語 | sonkeigo | honorific language that raises another person |
謙譲語 | kenjōgo | humble language that lowers the speaker |
美化語 | bikago | beautified or refined language |
普通形 | futsūkei | plain form |
です・ます形 | desu-masu-kei | polite form using です and ます |
How Teineigo Works in Real Sentences
Teineigo commonly appears through です and ます, but the change depends on the grammar. Verbs use the ます ending, while nouns and adjectives often use です.
A sentence can also contain an embedded clause in plain form while the main sentence remains polite. This is important because Japanese does not always make every part of a sentence polite in the same way.
For example, the embedded clause “I think he will come” uses 来る (kuru, to come) before と思います (to omoimasu, I think). The main ending becomes polite, while the quoted or embedded content stays in plain form.
Example sentences
明日、学校へ行きます。
Ashita, gakkō e ikimasu.
I will go to school tomorrow.
田中さんは来ると思います。
Tanaka-san wa kuru to omoimasu.
I think Tanaka will come.
先生に日本語を教えていただきました。
Sensei ni Nihongo o oshiete itadakimashita.
I received the favor of being taught Japanese by my teacher.
こちらの資料をご覧ください。
Kochira no shiryō o goran kudasai.
Please look at these materials.
The third sentence uses a humble receiving expression, while the fourth uses sonkeigo to refer respectfully to the listener’s action. These distinctions matter more in workplaces and formal social situations than in ordinary conversations with friends.
Common Mistakes with Polite Japanese
Learners often confuse “polite” with “formal in every part of the sentence.” Teineigo is useful, but choosing the right form also depends on who performs the action and who receives respect.
Using polite endings with a friend in every situation. Saying 食べます (tabemasu, eat) to a close friend is grammatically correct, but it may sound distant if the conversation is normally casual.
Using sonkeigo for your own action. Sonkeigo raises another person, so it is not normally used to describe your own action. When you speak about yourself to a customer or boss, kenjōgo may be more appropriate.
Treating plain form as rude. Plain form is natural in casual conversation, diaries, embedded clauses, and many written contexts. It becomes inappropriate mainly when the social situation requires a polite relationship.
Changing only one word without checking the whole sentence. A teacher can help you identify whether the speaker, listener, or action owner should receive respectful treatment. Teachers can also check whether the sentence ending sounds natural, especially when you switch between plain and polite language.
A practical online lesson can focus on one relationship, such as speaking to a boss, and one situation, such as making a request. In a standard 25-minute one-on-one lesson over LINE, you can work through a warm-up, a target speaking task, corrections, and a learner-owned review note or question list.
How to Practise Teineigo Naturally
Start with one plain sentence and ask three questions:
- Who is speaking?
- Who is listening?
- Whose action is being described?
Then decide whether you need plain form, teineigo, sonkeigo, or kenjōgo. This prevents you from memorising polite expressions without understanding their social purpose.
Practise the same message in two versions. For example, you might first say it casually to a friend, then change it for a teacher or workplace contact. Pay attention to the ending, the verb choice, and whether the expression sounds too distant or too familiar.
A live teacher is especially useful for feedback on naturalness. Learners often know the correct grammar but still need help with register, rhythm, and choosing a form that fits the relationship.
If you want to test your current level and practise one real speaking situation, book a Free Trial Lesson over LINE.
FAQ
Is teineigo the same as keigo?
Teineigo is one type of keigo, so the two terms are related but not identical. Keigo is the wider category of respectful Japanese, including teineigo, sonkeigo, kenjōgo, and sometimes bikago. Teineigo mainly makes the sentence polite through expressions such as です and ます without necessarily changing whose status is elevated.
Should beginners learn teineigo first?
Beginners usually benefit from learning teineigo early because it is useful with teachers, new acquaintances, and many everyday service interactions. At the same time, plain form is essential for understanding conversation and building embedded sentences. Learning both gradually helps you avoid treating polite speech as the only correct Japanese style.
When should I use plain form?
Use plain form with close friends and family when the relationship supports casual speech, and inside many embedded clauses. It also appears in dictionaries, informal writing, and grammar explanations. Plain form is not automatically rude, but using it with unfamiliar people or in formal settings can sound too direct.
Do I need sonkeigo and kenjōgo?
You do not need advanced sonkeigo and kenjōgo for every conversation, but they become valuable in workplaces, customer service, and formal communication. Begin with common expressions and learn who performs the action. Focused feedback can show you which forms are necessary now and which can be added later.
