Korean speech levels are sentence-ending systems that position the speaker in relation to the listener. They can express politeness, familiarity, social distance, professional formality, or deliberate intimacy. The right choice depends on the relationship and setting—not simply on who is older.
For learners seeking Korean speech levels explained in practical terms, three styles matter most in everyday conversation: 하십시오체, the formal-polite style heard in forms such as 합니다; 해요체, the conversational-polite style built around endings such as -아요/-어요; and 해체, a casual style found in forms such as 가 and 먹었어. 해라체 also deserves attention because it is common in writing and appears selectively in speech.
The ending frames the relationship
Korean predicates normally come at the end of a sentence, and addressee speech level is expressed through the final ending. The National Institute of Korean Language defines this system, called 상대 높임법, as the selection of sentence endings that raise or lower the listener. source
Compare four ways to say “I’m going”:
- 갑니다. — formal-polite
- 가요. — conversational-polite
- 가. — casual
- 간다. — plain-style declarative
The destination and action have not changed, but the social framing has. 갑니다 maintains a formally bounded tone. 가요 is polite without sounding ceremonial. 가 presumes that casual speech is acceptable. 간다 may sound matter-of-fact, intimate, authoritative, or text-like depending on the situation.
Questions show the same contrast:
- 갑니까? — formal-polite
- 가요? — conversational-polite
- 가? — casual
These can all mean “Are you going?” The main difference is how the speaker addresses the listener.
The three styles learners need first
하십시오체: formal-polite speech
하십시오체, also commonly called 합쇼체 or informally described by learners as “합니다 style,” uses endings such as -습니다/-ㅂ니다 for statements and -습니까/-ㅂ니까 for questions. Examples include 감사합니다 (“Thank you”), 확인했습니다 (“I checked it”), and 준비됐습니까? (“Is it ready?”).
This style is associated with public announcements, presentations, formal reports, customer-service scripts, ceremonies, military settings, and other situations requiring clear professional distance. It can also be appropriate when first addressing someone in an especially formal institutional context.
That does not make it universally “more respectful” than every other style. With a close friend, sustained 하십시오체 may sound stiff, playful, sarcastic, or like an imitation of an official announcement. The ending is formal, but its conversational effect still depends on context.
해요체: the safest everyday default
해요체 uses endings such as -아요/-어요, along with related forms ending in 요: 가요 (“go” or “am going”), 먹었어요 (“ate”), and 괜찮아요 (“It’s okay”). It is grammatically classified as a nonformal style, but it is polite. Official descriptions distinguish the four formal styles from the two nonformal styles, 해요체 and 해체; “nonformal” here does not mean discourteous. source
For most learners, 해요체 is the best starting point when speaking with adults they do not know closely. It works naturally when meeting someone, ordering food, asking for assistance, speaking with an acquaintance, or talking to many colleagues. You do not need to switch to 갑니다 merely because the listener is older.
해체: casual speech
해체 includes casual endings such as -아/-어, -지, and -야: 가 (“go”), 먹었어 (“ate”), 알지? (“You know, right?”), and 괜찮아 (“It’s okay”). The casual -야 can form either statements or questions, as in 학생이야 (“[Someone] is a student”) and 뭐야? (“What is it?”). source
해체 is central to what Koreans commonly call 반말, but the terms are not exact grammatical synonyms. 반말 is a broader everyday label for non-honorific or lowered speech and may include forms associated with both 해체 and 해라체.
Casual speech is common among many close friends, siblings, couples, and family members, and when adults speak to young children. These are patterns rather than automatic rules. Some friends continue using 해요체, and family conventions vary widely. Using 해체 before the relationship supports it can sound presumptuous because the speaker appears to claim familiarity or unequal footing without agreement.
Why grammar references list six levels
Standard descriptions traditionally divide Korean addressee speech into six styles. Four are classified as formal and two as nonformal: source
- 하십시오체 — formal and highly deferential toward the listener
- 하오체 — formal and moderately elevating
- 하게체 — formal, while treating the listener as somewhat lower
- 해라체 — formal plain or strongly lowered style
- 해요체 — nonformal but polite
- 해체 — nonformal and casual
This chart describes grammatical contrasts, not six equally useful options for modern learners. 하오체, recognizable in forms such as 하오 and 하시오, is now rare in ordinary conversation according to the Korean Basic Dictionary. It is more likely to appear in historical or stylized dialogue and a limited range of interpersonal contexts. source
하게체 includes forms such as 하게, 하네, and 하는가. It traditionally combines some consideration for the listener with a clearly unequal relationship. Learners may encounter it in older-generation speech, fictional dialogue, or relationships such as an older mentor addressing an adult junior, but it is not a general-purpose alternative to 해요체. source
해라체 remains much more visible. Plain declarative endings such as -다/-ㄴ다/-는다 are used in expository writing, narration, diaries, headlines, and self-directed notes. Spoken uses vary by ending: 나 먼저 간다 (“I’m heading off first”) can be natural among friends, while a command such as 빨리 와라 (“Come quickly”) more clearly places the listener below or inside an established intimate relationship. Learners should not treat every 해라체 form as interchangeable with friendly 해체.
Speech level and honorifics are separate layers
Speech level primarily concerns how the listener is addressed. The honorific marker -(으)시- concerns the person associated with the subject’s action or state. Korean also has honorific nouns, particles, and special verbs. These systems often appear together, but they perform different jobs. Official grammar descriptions likewise separate addressee honorification from subject honorification. source
Consider:
- 교수님이 오셨어요. — “The professor came.”
In 오셨어요, -시- honors the professor, while the final 해요체 ending addresses the listener politely. The professor and listener need not be the same person.
You can honor the subject while speaking casually to a friend:
- 할머니가 오셨어. — “Grandma came.”
The grandmother is honored through -시-, but the listener receives the casual ending -어.
Special vocabulary adds another distinction. When respectfully describing someone’s actions, 먹다 (“to eat”) may become 드시다, while 있다 (“to be present”) may become 계시다. Adding 요 makes an ending polite toward the listener, but it does not automatically solve every subject- or vocabulary-honorific choice.
Age is a factor, not an algorithm
Age can influence speech choices, particularly when people first establish their relationship. It does not by itself determine workplace authority, acceptable speech level, or who may use 반말. Speakers also consider familiarity, role, rank, setting, institutional culture, responsibility, and personal preference.
A younger manager does not automatically use casual speech with older employees, and an older new hire does not acquire professional authority through age alone. Many workplaces use polite speech broadly, with job titles and responsibilities shaping interaction more strongly than birth order. Individual offices differ, so listening to established practice is more reliable than applying a single age-based rule.
Even people born in the same year may handle speech differently. Some quickly recognize each other as 동갑 and move to 반말; others retain 존댓말 because the relationship is professional, new, or simply more comfortable that way.
Moving from 존댓말 to 반말
The transition to casual speech is often proposed rather than silently assumed. One natural exchange is:
A: 우리 말 놓을까요?
“Shall we speak casually?”B: 네, 좋아요. 서로 편하게 말해요.
“Sure. Let’s speak comfortably with each other.”
말을 놓다 means to stop maintaining honorific speech with someone, while 편하게 말하다 means to speak comfortably. The second expression can be ambiguous: an older or higher-ranking speaker may intend to relax the conversation without necessarily proposing perfectly symmetrical 반말. If the arrangement is unclear, continuing with 해요체 is a safe response.
At a first meeting, this exchange is more typical:
A: 안녕하세요. 민지 씨 맞으세요?
“Hello. Are you Minji?”B: 네, 맞아요. 알렉스 씨죠?
“Yes. You’re Alex, right?”
해요체 fits because the speakers are polite while keeping the encounter conversational.
Why speakers sometimes switch levels
Natural conversation does not always remain in one textbook category. A presenter may begin in 하십시오체, shift to 해요체 while explaining an example, and return to 하십시오체 for the closing. The change can make part of the talk feel warmer or more conversational without abandoning politeness.
Close friends may briefly add 요 for mock formality, teasing, persuasion, or emotional distance. Dropping it unexpectedly can suggest urgency, irritation, intimacy, or an attempted change in the relationship. An ending alone cannot prove the speaker’s intention; tone, expression, setting, and previous interaction all matter.
For learners, consistency is still the safest starting strategy. Use 해요체 in ordinary interactions with adults unless the setting clearly favors 하십시오체. Do not drop 요 solely because someone is friendly, and do not assume that an older listener requires stiff formal endings. Notice the forms used around you, but let any move toward casual speech be supported by the relationship rather than guessed from age alone.