sinus

noun/ˈsaɪnəs/

Frequency rank: #9,771 of 20,003 in the WORDED list (wordfreq data)

Meaning

a hollow cavity in the skull connected to the nasal passages.

Illustration for the English word “sinus”

Example sentence

The doctor examined my sinus to check for signs of infection.

Synonyms & related words

More words in ranks 9,701–9,800