The difference between Fish and Sucker

Fish as a noun (countable):

A cold-blooded vertebrate animal that lives in water, moving with the help of fins and breathing with gills.

Fish as a noun (archaic, or, loosely):

Any animal (or any vertebrate) that lives exclusively in water.

Fish as a noun (uncountable):

The flesh of the fish used as food.

Fish as a noun (uncountable):

A card game in which the object is to obtain cards in pairs or sets of four (depending on the variation), by asking the other players for cards of a particular rank.

Fish as a noun (uncountable, derogatory, slang):

A woman.

Fish as a noun (countable, slang):

An easy victim for swindling.

Fish as a noun (countable, poker slang):

A bad poker player. Compare shark (a good poker player).

Fish as a noun (countable, nautical):

A makeshift overlapping longitudinal brace, originally shaped roughly like a fish, used to temporarily repair or extend a spar or mast of a ship.

Fish as a noun (nautical):

A purchase used to fish the anchor.

Fish as a noun (countable, nautical):

A torpedo.

Fish as a noun (zoology):

A paraphyletic grouping of the following extant taxonomic groups: Class Myxini, the hagfish (no vertebra) Class Petromyzontida, the lampreys (no jaw) Within infraphylum Gnathostomata (jawed vertebrates (also including Tetrapoda) # Class Chondrichthyes, cartilaginous fish such as sharks and rays # Superclass Osteichthyes, bony fish.

Fish as a noun (cartomancy):

The thirty-fourth Lenormand card.

Fish as a noun:

A period of time spent fishing.

Fish as a noun:

An instance of seeking something.

Fish as a verb (intransitive):

To hunt fish or other aquatic animals.

Fish as a verb (transitive):

To search (a body of water) for something other than fish.

Fish as a verb (intransitive):

To (attempt to) find or get hold of an object by searching among other objects.

Fish as a verb (intransitive, followed by "for" or "around for"):

To talk to people in an attempt to get them to say something.

Fish as a verb (intransitive, cricket):

Of a batsman, to attempt to hit a ball outside off stump and miss it.

Fish as a verb (nautical):

To repair a spar or mast by fastening a beam or other long object (often called a fish) over the damaged part (see Noun above).

Fish as a noun (obsolete):

A counter, used in various games.

Sucker as a noun:

A person or animal that sucks, especially a breast or udder; especially a suckling animal, young mammal before it is weaned.

Sucker as a noun (horticulture):

An undesired stem growing out of the roots or lower trunk of a shrub or tree, especially from the rootstock of a grafted plant or tree.

Sucker as a noun:

A parasite; a sponger.

Sucker as a noun:

An organ or body part that does the sucking; especially a round structure on the bodies of some insects, frogs, and octopuses that allows them to stick to surfaces.

Sucker as a noun:

A thing that works by sucking something.

Sucker as a noun:

The embolus, or bucket, of a pump; also, the valve of a pump basket.

Sucker as a noun:

A pipe through which anything is drawn.

Sucker as a noun:

A small piece of leather, usually round, having a string attached to the center, which, when saturated with water and pressed upon a stone or other body having a smooth surface, adheres, by reason of the atmospheric pressure, with such force as to enable a considerable weight to be thus lifted by the string; formerly used by children as a plaything.

Sucker as a noun (British, colloquial):

A suction cup.

Sucker as a noun:

An animal such as the octopus and remora, which adhere to other bodies with such organs.

Sucker as a noun:

Any fish in the family Catostomidae of North America and eastern Asia, which have mouths modified into downward-pointing, suckerlike structures for feeding in bottom sediments

Sucker as a noun (American, informal):

A piece of candy which is sucked ; a lollipop

Sucker as a noun (slang, archaic):

A hard drinker; a soaker.

Sucker as a noun (American, obsolete):

An inhabitant of Illinois.

Sucker as a noun (American, slang):

A person who is easily deceived, tricked or persuaded to do something; a naive person

Sucker as a noun:

A person irresistibly attracted by something specified.

Sucker as a noun (obsolete, vulgar, British slang):

The penis.

Sucker as a verb (horticulture, transitive):

To strip the suckers or shoots from; to deprive of suckers.

Sucker as a verb (horticulture, intransitive):

To produce suckers, to throw up additional stems or shoots.

Sucker as a verb (transitive):

To fool someone; to take advantage of someone.

Sucker as a noun (slang):

A thing or object. Any thing or object being called attention to with emphasis, as in "this sucker".

Sucker as a noun (informal):

Generalized term of reference to a person.