As a noun undershirt

is an upper undergarment with no collar, and with short or no sleeves, worn next to the skin under a shirt; a singlet or (british ) a vest.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between dependant and dependance

is that dependant is dependent; one who is dependent while dependance is addiction, dependence (a habit or practice).

As a verb dependant

is .

As an adjective dependant

is dependent.

As an adjective emeritus

is retired, but retaining an honorific version of previous title (especially "professor").

As a noun emeritus

is a person retired in this sense (feminine form emerita).

As a verb retire is

.

As nouns the difference between trousers and lacks

is that trousers is an article of clothing that covers the part of the body between the waist and the ankles, and is divided into a separate part for each leg while lacks is .

As adjectives the difference between desirous and coveted

is that desirous is feeling desire; eagerly wishing; solicitous; eager to obtain; covetous while coveted is highly sought-after.

As a verb coveted is

(covet).

As a verb reinvent

is to invent again something that has already been invented.

As an adjective alter is

.

As nouns the difference between leads and lines

is that leads is while lines is .

As verbs the difference between leads and lines

is that leads is (lead) while lines is (line).

As an adjective worthwhile

is good and important enough to spend time, effort, or money on.

As a verb outweigh is

to exceed in weight or mass.

As a verb complete

is .

As a noun fil is

thread.

As verbs the difference between crafting and forging

is that crafting is while forging is .

As nouns the difference between crafting and forging

is that crafting is the act by which something is crafted while forging is a component that is forged (shaped by heating and hammering).