sickness

As nouns the difference between sickness and null

is that sickness is the quality or state of being sick or diseased; illness; disease or malady while null is zero, nil; the cardinal number before einn.

As a letter s

is the letter s with a.

As a noun sickness is

the quality or state of being sick or diseased; illness; disease or malady.

As nouns the difference between decease and sickness

is that decease is (formal) death while sickness is the quality or state of being sick or diseased; illness; disease or malady.

As a verb decease

is to die.

As nouns the difference between pneumonoultramicroscopicsilicovolcanoconiosis and sickness

is that pneumonoultramicroscopicsilicovolcanoconiosis is (label) a factitious disease of the lungs, allegedly caused by inhaling microscopic silicate particles originating from eruption of a volcano while sickness is the quality or state of being sick or diseased; illness; disease or malady.

As a noun sickness

is the quality or state of being sick or diseased; illness; disease or malady.

As a proper noun death is

the personification of death, often a skeleton with a scythe, and one of the four horsemen of the apocalypse.

As a noun sickness

is the quality or state of being sick or diseased; illness; disease or malady.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between sickness and velocity

is that sickness is the quality or state of being sick or diseased; illness; disease or malady while velocity is (physics) a vector quantity that denotes the rate of change of position with respect to time, or a speed with the directional component.

Sickness is a related term of affection.

As nouns the difference between sickness and affection

is that sickness is the quality or state of being sick or diseased; illness; disease or malady while affection is the act of affecting or acting upon.

As a verb affection is

to feel an , emotion or love for.

Confusion is a related term of sickness.

As nouns the difference between confusion and sickness

is that confusion is confusion while sickness is the quality or state of being sick or diseased; illness; disease or malady.

Bustle is a related term of sickness.

As nouns the difference between bustle and sickness

is that bustle is an excited activity; a stir while sickness is the quality or state of being sick or diseased; illness; disease or malady.

As a verb bustle

is to move busily and energetically with fussiness (often followed by about ).