challenge

As a noun tension

is tension.

As a verb challenge is

.

As a verb challenge

is .

As a noun response is

(senseid)an answer or reply, or something in the nature of an answer or reply.

As a noun difference

is difference.

As a verb challenge is

.

As verbs the difference between feat and challenge

is that feat is (obsolete) to form; to fashion while challenge is .

As a noun feat

is a relatively rare or difficult accomplishment.

As an adjective feat

is (archaic) dexterous in movements or service; skilful; neat; pretty.

As verbs the difference between confirm and challenge

is that confirm is to strengthen; to make firm or resolute while challenge is .

As nouns the difference between challenge and hardship

is that challenge is a confrontation; a dare while hardship is (countable or uncountable) Difficulty or trouble; hard times.

As a verb challenge

is to invite someone to take part in a competition.

As verbs the difference between want and challenge

is that want is to wish for or to desire (something) while challenge is to invite someone to take part in a competition.

As nouns the difference between want and challenge

is that want is a desire, wish, longing while challenge is a confrontation; a dare.

As a proper noun Want

is a personification of want.

As verbs the difference between challenge and demerit

is that challenge is while demerit is (archaic) to deserve.

As a noun demerit is

(senseid) a quality of being inadequate; a fault; a disadvantage.

As a noun aspect

is the way something appears when viewed from a certain direction or perspective.

As a verb challenge is

.

As a noun crucible

is (chemistry) a cup-shaped piece of laboratory equipment used to contain chemical compounds when heating them to very high temperatures.

As a verb challenge is

.