Correct spelling

length

Correct spelling, explanation: -th is a suffix that forms abstract nouns of condition or quality. Therefore the correct form is length, not lenght. Just like other abstract nouns which describe conditions, such as width, length is spelled with -th.

Definition of length:
noun, extent from end to end of something
The length of the river is 150km.
The city council wants to double the length of the local railway.


Incorrect spelling

lenght

Incorrect spelling, explanation: lenght is an incorrect form because -th is a suffix describing a condition. Therefore in such words as depth, width, or length the ending is -th, not -ht. Length is thus the correct spelling of this noun.

Incorrect spelling

legnth

Incorrect spelling

Incorrect spelling

lenth

Incorrect spelling

Incorrect spelling

legnht

Incorrect spelling

Incorrect spelling

longth

Incorrect spelling