concussion

Jar is a synonym of concussion.

As an initialism jar

is (software|java).

As a noun concussion is

a violent collision or shock.

Concussion is a related term of jolt.

As nouns the difference between concussion and jolt

is that concussion is a violent collision or shock while jolt is an act of jolting.

As a verb jolt is

to push or shake abruptly and roughly.

As nouns the difference between concussion and convulsion

is that concussion is a violent collision or shock while convulsion is convulsion.

As nouns the difference between concussion and headage

is that concussion is a violent collision or shock while headage is the number of stock animals ((head)) on a farm.

As nouns the difference between concussion and percussion

is that concussion is a violent collision or shock while percussion is the collision of two bodies in order to produce a sound.

As nouns the difference between concussion and implosion

is that concussion is a violent collision or shock while implosion is implosion.

As a noun concussion is

a violent collision or shock.

Concussion is a related term of impact.

As nouns the difference between concussion and impact

is that concussion is a violent collision or shock while impact is the striking of one body against another; collision.

As a verb impact is

to compress; to compact; to press or pack together.

Concussion is a related term of reverberation.

As nouns the difference between concussion and reverberation

is that concussion is a violent collision or shock while reverberation is reverberation.

Concussion is a related term of quake.

As nouns the difference between concussion and quake

is that concussion is a violent collision or shock while quake is a trembling]] or [[shake|shaking.

As a verb quake is

(lb) to tremble or shake.