sand tiger vs sand shark

sand tiger and sand shark both are nouns.

Word	Noun	Adjective	Verb	Adverb
sand tiger	Yes	No	No	No
sand shark	Yes	No	No	No

As nouns, sand tiger and sand shark are synonyms defined as:

sand tiger and sand shark: shallow-water shark with sharp jagged teeth found on both sides of Atlantic; sometimes dangerous to swimmers

Other synonyms of sand tiger include Carcharias taurus, Odontaspis taurus.

sand tiger (noun)	sand shark (noun)
shallow-water shark with sharp jagged teeth found on both sides of Atlantic; sometimes dangerous to swimmers	shallow-water shark with sharp jagged teeth found on both sides of Atlantic; sometimes dangerous to swimmers