say it: NOHT-buuk
notebook is a noun meaning "a book with blank pages for recording notes or memoranda". It carries 2 recorded senses.
a book with blank pages for recording notes or memoranda
a small compact portable computer
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for notebook come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.