Read the following thesaurus entry.

hamper

verb
Definition: to block or prevent
Synonyms: encumber, hinder, obstruct
Antonyms: help, support

noun
Definition: container for clothes or food
Synonyms: basket, crate, bin

According to this thesaurus entry, the word “support”

is a synonym for the word “hamper.”
is the opposite of the word “hamper.”
is a definition for the word “hamper.”
is the part of speech for the word “hamper.”