adjective

ith

yth

Ith (adjective) means used after a number to form an ordinal, standing in for a variable position in a sequence (as in "the ith term"). Example: “In the formula, a_i refers to the ith element of the list.”

adjective

Used after a number to form an ordinal, standing in for a variable position in a sequence (as in "the ith term").

"In the formula, a_i refers to the ith element of the list."

How to use ith

Learner’s notes

In plain EnglishA mathematical/programming shorthand meaning "the number in position i," used when the exact position is a variable rather than fixed.

When to use it

Almost exclusively used in maths, computer science, and technical writing.

Word forms

iths plural

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Fill the gap

Can you complete this real example?

In the formula, a_i refers to the _____ element of the list.

Etymology

Formed from the letter i (used as a placeholder variable) plus the ordinal suffix -th, as in "fourth" or "fifth."

Rhymes for ith

with sith smith

See all rhymes for ith →

Frequently asked questions

What does “ith” mean?

The word “ith” means used after a number to form an ordinal, standing in for a variable position in a sequence (as in "the ith term"). In plain terms, a mathematical/programming shorthand meaning "the number in position i," used when the exact position is a variable rather than fixed.

How do you pronounce “ith”?

“Ith” is pronounced yth (/aɪθ/ in IPA).

What part of speech is “ith”?

“Ith” is an adjective.

What is the meaning of ith?

"ith" (adjective) means used after a number to form an ordinal, standing in for a variable position in a sequence (as in "the ith term").