ที่ (ขยายคำนาม)

The One That

Level 1

ที่ (thîi) can introduce a clause that describes a noun phrase. In the patterns here, it connects the noun phrase with that clause.

How It Works

ที่ (thîi) can introduce a relative clause that gives information about a noun phrase. A relative clause contains a description, action, or other predicate concerning that noun phrase.

1. Basic Structure
A useful pattern in this entry is:
[Noun] + ที่ + [Description]
Example: อาหารที่เผ็ด (Food that is spicy)

2. Using Classifiers
Some relative constructions include a classifier. Its presence and interpretation depend on the construction and context; it is not required in every relative clause:
[Noun] + [Classifier] + ที่ + [Description]
Example: ผู้ชายคนที่มา (The man [person-classifier] who came)

3. Versatility
ที่ can introduce relative clauses describing people, things, or places, as in these examples:

  • People: คนที่ฉันรัก (The person who I love)
  • Things: หนังสือที่ผมอ่าน (The book that I read)
  • Places: บ้านที่เขาสร้าง (The house that he built)

4. Important Distinction
Distinguish this relative marker from the location-marking use ที่ (at). They have the same spelling and tone. In the patterns shown here, the relative marker ที่ introduces a clause within a noun phrase, whereas location-marking ที่ precedes a place expression. Read the complete construction to identify the function; this distinction does not exhaust every use of the word.

Examples (4)

  1. อาหารที่เผ็ดเกินไปฉันกินไม่ได้

    I can't eat food that is too spicy.

    Word by Word: food that spicy too-much I eat not can

    ที่ connects 'food' (อาหาร) to the description 'too spicy' (เผ็ดเกินไป).

  2. คนที่มีความสุขมักจะยิ้มบ่อย

    People who are happy usually smile often.

    Word by Word: people that have happiness usually smile often

    ที่ acts as 'who' to describe the 'people' (คน).

  3. นี่คือหนังสือเล่มที่ผมอยากอ่าน

    This is the book that I want to read.

    Word by Word: this is book [classifier] that I want read

    Here, ที่ follows the classifier 'เล่ม' and introduces the clause describing the book the speaker wants to read. The complete noun phrase and context identify the intended book.

  4. ผู้หญิงคนที่ยืนอยู่ตรงนั้นคือครูของฉัน

    The woman who is standing over there is my teacher.

    Word by Word: woman [classifier] that stand stay right there is teacher of I

    ที่ links the woman to the action of standing over there.

Common Mistakes

  • Using ที่ instead of ว่า for 'that' after verbs of thinking or speaking.

    ผมคิดที่เขาจะมา
    ผมคิดว่าเขาจะมา

    ที่ is not the marker for the intended thought-content clause in this pair. The second string uses ว่า to introduce what the speaker thinks. This is a distinction between the constructions here, not a rule that every clause following any thinking or speaking verb has the same form.

  • Including a redundant pronoun inside the relative clause.

    คนที่เขามาเมื่อวาน
    คนที่มาเมื่อวาน

    Here ที่ introduces a clause describing the noun, and adding 'เขา' (he/she) repeats that noun as the clause subject. Avoid that repetition in this basic pattern. This differs from an object-relative clause, which can have its own separate subject.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

ที่ (ขยายคำนาม)Level 1The One That

Learn This First

To understand 'ที่' as a relative pronoun (meaning 'that', 'which', or 'who'), you first need to be comfortable with basic Thai word order, specifically how modifiers like adjectives are placed after the noun they describe. Since 'ที่' introduces a whole clause to describe a noun, it follows this same structural logic.

Learn Next

Patterns that build on this one.

And 6 more in the full list.

Words in This Pattern

ที่