up vs upward

up and upward both are adjectives.

Word	Noun	Adjective	Verb	Adverb
up	No	Yes	Yes	Yes
upward	No	Yes	No	Yes

As adjectives, up and upward are synonyms defined as:

As adverbs, up and upward are synonyms defined as:

up and upward: spatially or metaphorically from a lower to a higher position

Other synonyms of up include upwardly, upwards.

As adverbs, up and upward are synonyms defined as:

Other synonyms of up include upwards.

up (adjective)	upward (adjective)
being or moving higher in position or greater in some value; being above a former position or level	extending or moving toward a higher place
extending or moving toward a higher place	directed up
out of bed
used up
(used of computers) operating properly
(usually followed by `on' or `for') in readiness
open
getting higher or more vigorous

up (verb)	upward (verb)
raise

up (adverb)	upward (adverb)
spatially or metaphorically from a lower to a higher position	spatially or metaphorically from a lower to a higher position
to a later time	to a later time
to a more central or a more northerly place
nearer to the speaker
to a higher intensity