When comparing with nouns, use plus de (noun) que for superiority, moins de (noun) que for inferiority, and autant de (noun) que for equality.
Noun: livre (book)
plus de livres (more books)
moins de livres (fewer books)
autant de livres (as many books)
Types of comparisons with nouns
1. Compare the amount of a noun between two subjects.
Jean veut autant d'amis que Luc.
Jean wants as many friends as Luc (has).
La France a plus de vin que l'Allemagne.
France has more wine than Germany.
2. Compare two nouns (note that the second noun must also be preceded by de).
Jean a plus d'intelligence que de bon sens.
Jean has more brains than sense.
Jeanne a autant d'amis que d'ennemis.
Jeanne has as many friends as enemies.
3. Compare a noun over time.
Jean connaît moins de gens qu'avant.
Jean knows fewer people than (he did) before.
Jeanne a autant d'idées que toujours.
Jeanne has as many ideas as ever.
Note: You can also make an implied comparison to any of the above by leaving out que.
Jean veut autant d'amis.
Jean wants as many friends.
La France a plus de vin.
France has more wine.
French comparatives and superlatives
Introduction to comparatives
Comparatives with adjectives
Comparatives with adverbs
Comparatives with nouns
Comparatives with verbs

