charge vs pledge

charge and pledge both are nouns.

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

As verbs, pledge is a hyponym of charge; that is, pledge is a word with a more specific, narrower meaning than charge:

Other hyponyms of charge include hock, pawn, soak, check, check.

charge (noun)	pledge (noun)
attention and management implying responsibility for safety	a binding commitment to do or give or refrain from something
an impetuous rush toward someone or something	a drink in honor of or to the health of a person or event
a special assignment that is given to a person or group	someone accepted for membership but not yet fully admitted to the group
a quantity of explosive to be set off at one time	a deposit of personal property as security for a debt
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

charge (verb)	pledge (verb)
energize a battery by passing a current through it in the direction opposite to discharge	promise solemnly and formally
cause formation of a net electrical charge in or on	bind or secure by a pledge
saturate	give as a guarantee
attribute responsibility to	propose a toast to
set or ask for a certain price	pay (an amount of money) as a contribution to a charity or service, especially at regular intervals
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