dictionnaire

/diksjɔnɛʁ/
1.
nounmasculineSing

dictionary (a reference book or digital resource listing words and their meanings, pronunciations, usage, etc.)

J'ai dû regarder dans le dictionnaire pour vérifier l'orthographe.

I had to look in the dictionary to check the spelling.

Synonyms:lexique, ouvrage de référence
2.
nounmasculineSing

person with very wide or detailed knowledge on many subjects (walking encyclopedia)

Demande-lui, c'est un vrai dictionnaire ambulant.

Ask him, he's a real walking dictionary.

Synonyms:encyclopédie, puits de science