As a noun seal

is sea, air, land (used as a name of a military unit).

As a proper noun alligator is

.

As nouns the difference between seal and bee

is that seal is sea, air, land (used as a name of a military unit) while bee is .

As nouns the difference between seal and beetle

is that seal is sea, air, land (used as a name of a military unit) while beetle is any of numerous species of insect in the order coleoptera characterized by a pair of hard, shell-like front wings which cover and protect a pair of rear wings when at rest or beetle can be a type of mallet with a large wooden head, used to drive wedges, beat pavements, etc.

As a verb beetle is

to move away quickly, to scurry away or beetle can be to loom over; to extend or jut or beetle can be to beat with a heavy mallet.

As an adjective beetle is

protruding, jutting, overhanging (as in beetle brows ).

As nouns the difference between seal and cockroach

is that seal is sea, air, land (used as a name of a military unit) while cockroach is a black or brown straight-winged insect of the order blattodea .

As nouns the difference between seal and crocodile

is that seal is sea, air, land (used as a name of a military unit) while crocodile is any of the predatory amphibious reptiles of the family crocodylidae; (loosely) a crocodilian, any species of the order crocodilia, which also includes the alligators, caimans and gavials.

As nouns the difference between seal and scorpion

is that seal is a pinniped (Pinnipedia), particularly an earless seal (true seal) or eared seal while scorpion is any of various arachnids of the order Scorpiones, related to the spiders, characterised by two large front pincers and a curved tail with a poisonous sting in the end.

As a verb seal

is to hunt seals.

As an adjective Scorpion is

of, or pertaining to, the Scorpio star sign.

As nouns the difference between seal and shield

is that seal is sea, air, land (used as a name of a military unit) while shield is anything that protects or defends; defense; shelter; protection.

As a verb shield is

to protect, to defend.

As nouns the difference between sealant and encapsulants

is that sealant is any material used to seal a surface so as to prevent passage of a fluid while encapsulants is plural of encapsulant.

As a proper noun seals

is .

As a noun seal is

sea, air, land (used as a name of a military unit).

As nouns the difference between seaman and captain

is that seaman is a mariner or sailor, one who mans a ship opposed to landman or landsman while captain is a chief or leader.

As a verb captain is

to act as captain.