fast

Fast is a synonym of solidly.

As a verb fast

is .

As an adverb solidly is

in a solid or firm manner.

Fast is a synonym of posthaste.

As a verb fast

is .

As an adverb posthaste is

quickly, as fast as someone travelling post; with great speed.

As a noun posthaste is

.

Zestful is a related term of fast.

As an adjective zestful

is having a spirited love of life; ebullient.

As a verb fast is

.

As verbs the difference between purge and fast

is that purge is while fast is .

As an adverb apace

is quickly, rapidly, with speed.

As a verb fast is

.

As a noun apt

is .

As a proper noun apt

is .

As a verb fast is

.

As a proper noun just

is , cognate to english justus.

As a verb fast is

.

As verbs the difference between quicken and fast

is that quicken is while fast is .

As a noun quicken

is .

As adjectives the difference between zippy and fast

is that zippy is lively, quick and energetic while fast is firmly or securely fixed in place; stable.

As an adverb fast is

in a firm or secure manner, securely; in such a way as not to be moved .

As a noun fast is

a train that calls at only some stations it passes between its origin and destination, typically just the principal stations.

As an interjection fast is

short for "stand fast", a warning not to pass between the arrow and the target.

As a verb fast is

to abstain from food, or eat very little, especially for religious or medical reasons.

As verbs the difference between trash and fast

is that trash is (us) to discard while fast is .

As a noun trash

is (chiefly|us) useless things to be discarded; rubbish; refuse.