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Thai

ไส้

Pronunciation

sây

ไส้

sây

intestines

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  1. 1 intestines、guts; entrails
  2. 2 filling、stuffing
  3. 3 refill、lead、wick
  4. 4 private affairs、secret

This word centers on the idea of something inside an outer body or covering. It commonly means the intestines, a food filling, or an inner working part such as a pen refill, and it can also refer figuratively to private matters or secrets.

1

intestines、guts; entrails

Noun⭐️4 Often used

Refers to the intestines of a person or animal, sometimes with the more graphic sense of “guts” or “entrails.”

4

private affairs、secret

Noun⭐️2 Not often used

Figuratively refers to secrets, private affairs, or someone’s hidden nature, mainly in compounds and established expressions.

Learning notes

Explanation

The central image of ไส้ is something contained inside an outer body or covering. Its basic meaning is the intestines of a person or animal. From there, it extends naturally to food enclosed inside another food and to functional parts housed inside an object. For food, it commonly appears in the pattern “food + ไส้ + filling,” as in ซาลาเปาไส้หมู, a steamed bun with pork filling, and ขนมปังไส้ครีม, bread with a cream filling. For objects, the name of the object usually follows ไส้, as in ไส้ปากกา, a pen refill. Its meanings related to secrets and private affairs are figurative and occur mainly in established expressions such as รู้ไส้รู้พุง, “to know someone inside and out.”

Usage

It is common when discussing intestines as a body part or food, describing fillings in bread, sweets, and dumplings, and buying or replacing items such as pen refills and lamp wicks. It also appears in conversational idioms about knowing or exposing someone’s private affairs or true nature.

Caution

The intended meaning depends heavily on context. For example, ไส้หมู by itself can mean pig intestines, but in ซาลาเปาไส้หมู it means pork filling. ไส้ is not a general word for the contents of any container. For the contents of a box or bag, use an expression such as ของข้างใน. Also, learn ไส้เดือน as the complete word for “earthworm” rather than interpreting it from its individual parts.

Differences from similar words

1 intestines synonyms

2 filling synonyms

4 private affairs synonyms

  • ความลับ is the general, neutral word for a secret and can be used freely on its own. ไส้ occurs mainly in figurative expressions about exposing someone’s private affairs or true nature and has a more vivid, colloquial feel.

Component words

Other words containing ไส้

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