ตก

Explanation

The central image of ตก is downward movement from a higher, stable, or acceptable position. This explains its use not only for physical falls but also for decreasing prices, failing an exam, and entering a difficult situation. It is usually intransitive in its basic physical sense: แก้วตก means “the glass falls.” To say that someone accidentally drops an object, Thai commonly uses ทำ + object + ตก, as in ทำแก้วตก, “drop a glass.” Its meaning is often determined by the words around it. Common combinations such as ฝนตก “rain,” สอบตก “fail an exam,” ตกรถ “miss transportation,” and ตกงาน “be unemployed” are best learned as complete patterns. Some very common words, including ตกใจ “be startled” and ตกลง “agree; decide,” cannot be translated reliably by interpreting ตก on its own. Learn these as separate lexical units.

Usage

In everyday conversation, ตก is common when talking about dropped objects, rain, sunset, and changes in prices or temperature. It also appears frequently in education for failing tests, in travel for missing transportation, and in discussions of work for unemployment. News and more formal writing use it for abstract transitions such as falling into danger, becoming a victim, or coming under an enemy's control. In calculations and shared expenses, ตกคนละ… is a useful pattern meaning “come to … per person.”

Caution

Do not assume that ตก directly takes an object whenever English uses the transitive verb “drop.” For accidental dropping, the usual pattern is ทำ + object + ตก, as in ทำโทรศัพท์ตก, “drop a phone.” Also, ตก followed by a noun does not always mean that the noun falls. ตกปลา means “fish,” while ตกวิชา means “fail a subject.” Check and learn frequent combinations as whole expressions.

1 fall synonyms

• ร่วง

  rûaŋ fall off (leaves, fruit, etc.)

  ร่วง is common for leaves, hair, fruit, and similar things that detach and fall. ตก is the general verb for falling.

• หล่น

  lòn fall

  หล่น focuses on an object becoming detached or slipping from its place. ตก is broader and also commonly describes people falling or things falling into a lower place.

2 fall (rain, snow) synonyms

• ลับขอบฟ้า

  ลับขอบฟ้า vividly describes the sun disappearing beyond the horizon. ตก is the ordinary, concise verb used for sunset.

3 fall (in level or value) synonyms

• ลดลง

  lót loŋ decrease

  ลดลง explicitly means to decrease and works with many kinds of quantities. ตก emphasizes downward movement in a price, temperature, or level.

4 fail (a test or assessment) synonyms

• ไม่ผ่าน

  ไม่ผ่าน is a direct, neutral way to say that something did not pass a requirement. ตก is the everyday choice for failing a test or course and carries the image of falling below the standard.

5 miss (transportation) synonyms

• พลาด

  phlâat miss (an opportunity, event, vehicle)

  พลาด broadly means to miss an opportunity, target, or event. ตก is especially common in fixed expressions for failing to catch a particular form of transportation.

6 fall into (an unfavorable situation) synonyms

• กลายเป็น

  กลายเป็น is a general verb meaning “become” and can describe either positive or negative change. ตกเป็น commonly introduces an unwanted role or status, such as becoming a victim or suspect.

7 come to (an amount) synonyms

• เฉลี่ย

  เฉลี่ย focuses on averaging or on the average value itself. ตก presents the resulting amount assigned to each person, day, or other unit.