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gron

Meaning

1NounB2

radical sign; root sign

The mathematical symbol √, used to indicate a square root or, with an index, another root.

The teacher drew a radical sign on the board and explained that it is used to indicate a root of a number.

3 more examples

In this problem, nine is under the radical sign, and the answer is three.

If the radical sign has no index, it is understood to indicate a square root; if it has an index of three, it indicates a cube root.

When writing an expression with several terms under a radical sign, you must extend the top bar over all the terms whose root is to be taken.

See how the spelling sets each syllable's tone, step by step.

gron

The tone rules below use the spoken syllables.

2 syllables · pick one to see its rule

How the tone is decided

Consonant classMid class
Tone markNo tone mark
Syllable endingDead syllableA short vowel with no final consonant, so it is dead.

Mid class consonants

กจฎฏดตบปอ

Result

Starts low and stays low, easing slightly down.

Mid class + No tone mark + Dead syllable → Low

Tone chart

Every class and spelling pattern, with this syllable outlined.