thing vs whopper

thing and whopper both are nouns.

Word	Noun	Adjective	Verb	Adverb
thing	Yes	No	No	No
whopper	Yes	No	No	No

As nouns, whopper is a hyponym of thing; that is, whopper is a word with a more specific, narrower meaning than thing:

thing (noun)	whopper (noun)
a separate and self-contained entity	something especially big or impressive of its kind
an action	a gross untruth; a blatant lie
an artifact
an entity that is not named specifically
any attribute or quality considered as having its own existence
a special abstraction
a special objective
a vaguely specified concern
a statement regarded as an object
an event
a persistent illogical feeling of desire or aversion
a special situation