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Thai

พี่

Pronunciation

phîi

พี่

phîi

older sibling

Native recording

Analyzing pitch…

  1. 1 older sibling
  2. 2 older person [friendly, respectful address]、senior、upperclassman
  3. 3 you [older or senior person]、I [older speaker addressing a younger person]

พี่ refers to an older sibling or someone treated as older or senior. It is also widely used as a friendly, respectful form of address and as a relationship-based pronoun.

1

older sibling

Noun⭐️5 Essential

Refers to a sibling who is older than oneself, without specifying gender.

2

older person [friendly, respectful address]、senior、upperclassman

Noun⭐️5 Essential

Refers to or addresses a somewhat older or more senior person in a friendly but respectful way, even when there is no family relationship.

3

you [older or senior person]、I [older speaker addressing a younger person]

Pronoun⭐️4 Often used

Functions as a relationship-based pronoun: a younger speaker can use it for an older listener, while an older speaker can use it for themself when talking to someone younger.

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Learning notes

Explanation

The core idea of พี่ is a person who is older or senior relative to the speaker or another person established by context. Its basic meaning is “older sibling,” but Thai kinship terms are also commonly extended to people outside the family. พี่ does not indicate gender. พี่ชาย specifies an older brother, while พี่สาว specifies an older sister. The classifier used when counting people referred to as พี่ is คน. The pattern พี่ + name is extremely common in everyday conversation. It conveys both familiarity and respect toward an older friend, coworker, or acquaintance. พี่ is not tied to a fixed grammatical person. It can correspond to “you” when a younger person addresses someone older, or “I” when an older person speaks to someone younger. The basic term for the younger side of this relationship is น้อง.

Usage

It is common when talking about older siblings and when addressing older friends, school seniors, coworkers, familiar service workers, and other approachable older people. Couples may also use พี่ for the older partner and น้อง for the younger partner.

Caution

Do not automatically translate พี่ as “older brother” or “older sister.” Depending on context, it may mean a senior, an older person, “you,” or “I.” It can be friendly with strangers, but a title or คุณ + name may be more appropriate in highly formal settings.

Differences from similar words

2 older person [friendly, respectful address] synonyms

  • คุณ is a polite, age-neutral form of “you” or a title used before a name. พี่ explicitly frames the person as older or senior and usually feels warmer and more relational.

  • รุ่นพี่ specifically means someone from an earlier school year, intake, or cohort. พี่ is broader and can also address an older friend, coworker, or other familiar person.

Component words

Other words containing พี่

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