load vs overload

load and overload both are nouns.

Word	Noun	Adjective	Verb	Adverb
load	Yes	No	Yes	No
overload	Yes	No	Yes	No

As nouns, overload is a hyponym of load; that is, overload is a word with a more specific, narrower meaning than load:

Other hyponyms of load include burthen, dead load, live load, superload, millstone, overburden.

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

Other hyponyms of load include load down, pack, bomb up, overcharge, surcharge, reload, stack.

load (noun)	overload (noun)
weight to be borne or conveyed	an excessive burden
the front part of a guided missile or rocket or torpedo that carries the nuclear or explosive charge or the chemical or biological agents	an electrical load that exceeds the available electrical power
goods carried by a large vehicle
electrical device to which electrical power is delivered
an onerous or difficult concern
a deposit of valuable ore occurring within definite boundaries separating it from surrounding rocks
the power output of a generator or power plant
a quantity that can be processed or transported at one time
an amount of alcohol sufficient to intoxicate

load (verb)	overload (verb)
corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones	fill to excess so that function is impaired
fill or place a load on	place too much a load on
provide (a device) with something necessary	become overloaded
put (something) on a structure or conveyance
transfer from a storage device to a computer's memory