complaint vs charge

complaint and charge both are nouns.

Word	Noun	Adjective	Verb	Adverb
complaint	Yes	No	No	No
charge	Yes	No	Yes	No

As nouns, complaint and charge are synonyms defined as:

complaint and charge: (criminal law) a pleading describing some wrong or offense

complaint (noun)	charge (noun)
an expression of grievance or resentment	attention and management implying responsibility for safety
(formerly) a loud cry (or repeated cries) of pain or rage or sorrow	an impetuous rush toward someone or something
(civil law) the first pleading of the plaintiff setting out the facts on which the claim for relief is based	a special assignment that is given to a person or group
(criminal law) a pleading describing some wrong or offense	a quantity of explosive to be set off at one time
an often persistent bodily disorder or disease; a cause for complaining	heraldry consisting of a design or image depicted on a shield
	(criminal law) a pleading describing some wrong or offense
	a formal statement of a command or injunction to do something
	request for payment of a debt
	an assertion that someone is guilty of a fault or offence
	the swift release of a store of affective force
	(psychoanalysis) the libidinal energy invested in some idea or person or object
	a person committed to your care
	the quantity of unbalanced electricity in a body (either positive or negative) and construed as an excess or deficiency of electrons
	financial liabilities (such as a tax)
	the price charged for some article or service

complaint (verb)	charge (verb)
	energize a battery by passing a current through it in the direction opposite to discharge
	cause formation of a net electrical charge in or on
	saturate
	attribute responsibility to
	set or ask for a certain price
	file a formal charge against
	impose a task upon, assign a responsibility to
	blame for, make a claim of wrongdoing or misbehavior against
	make an accusatory claim
	instruct or command with authority
	instruct (a jury) about the law, its application, and the weighing of evidence
	to make a rush at or sudden attack upon, as in battle
	direct into a position for use
	fill or load to capacity
	provide (a device) with something necessary
	place a heraldic bearing on
	cause to be agitated, excited, or roused
	move quickly and violently
	lie down on command, of hunting dogs
	pay with a credit card; pay with plastic money; postpone payment by recording a purchase as a debt
	enter a certain amount as a charge
	demand payment
	give over to another for care or safekeeping
	cause to be admitted; of persons to an institution
	assign a duty, responsibility or obligation to