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Word of the Day Tuesday, June 9, 2026

octant

/ɒktɑnt/ noun · British & US
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What does octant mean?

noun

One of the eight equal parts into which the horizon is divided by the four cardinal points and the four intermediate points between them. A sector of the horizon.

Example

"The navigator used the octant to measure the angle between the ship and the sun."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for octant

Antonyms of octant

Rhymes with octant

Etymologically related