The difference between Still and Yet

When used as nouns, still means a period of calm or silence, whereas yet means a metal pan or boiler.

When used as adverbs, still means without motion, whereas yet means thus far.

When used as verbs, still means to calm down, to quiet, whereas yet means to melt.

Still is also adjective with the meaning: not moving.

Yet is also conjunction with the meaning: nevertheless.

check bellow for the other definitions of Still and Yet

Still as an adjective:

Not moving; calm.

Examples:

"'Still waters run deep."
Still as an adjective:

Not effervescing; not sparkling.

Examples:

"still water; still wines"
Still as an adjective:

Uttering no sound; silent.
Still as an adjective (not comparable):

Having the same stated quality continuously from a past time
Still as an adjective:

Comparatively quiet or silent; soft; gentle; low.
Still as an adjective (obsolete):

Constant; continual.

Still as an adverb:

Without motion.

Examples:

"They stood still until the guard was out of sight."
Still as an adverb (aspect):

Up to a time, as in the preceding time.

Examples:

"Is it still raining? It was still raining five minutes ago."

"We've seen most of the sights, but we are still to visit the museum."
Still as an adverb (degree):

To an even greater degree.

Examples:

"Tom is tall; Dick is taller; Harry is still taller. ("still" and "taller" can easily swap places here)"
Still as an adverb (conjunctive):

Nevertheless.

Examples:

"I’m not hungry, but I’ll still manage to find room for dessert."

"Yeah, but still..."
Still as an adverb (archaic, poetic):

Always; invariably; constantly; continuously.
Still as an adverb (extensive):

Even, yet.

Examples:

"Some dogs howl, more yelp, still more bark."

Still as a noun:

A period of calm or silence.

Examples:

"the still of the night"
Still as a noun (photography):

A photograph, as opposed to movie footage.
Still as a noun (slang):

A resident of the Falkland Islands.
Still as a noun:

A steep hill or ascent.

Examples:

"rfquotek W. Browne"

Still as a noun:

a device for distilling liquids.
Still as a noun (catering):

a large water boiler used to make tea and coffee.
Still as a noun (catering):

the area in a restaurant used to make tea and coffee, separate from the main kitchen.
Still as a noun:

A building where liquors are distilled; a distillery.

Still as a verb:

to calm down, to quiet

Examples:

"to still the raging sea"

Still as a verb (obsolete):

To trickle, drip.
Still as a verb:

To cause to fall by drops.
Still as a verb:

To expel spirit from by heat, or to evaporate and condense in a refrigeratory; to distill.

Examples:

"rfquotek Tusser"

Yet as an adverb (usually with negative):

Thus far; up to the present; up to some specified time.

Examples:

"He has never yet been late for an appointment; I’m not yet wise enough to answer that; Have you finished yet?"
Yet as an adverb:

Continuously up to the current time; still.

Examples:

"The workers went to the factory early and are striking yet."
Yet as an adverb:

At some future time; eventually.

Examples:

"The riddle will be solved yet."
Yet as an adverb (after certain copulative verbs, followed by an infinitive):

Not as of the time referenced.

Examples:

"I've yet to see him.'' — ''I have not yet seen him."

"I had yet to go to a convention.'' — ''I had not yet gone to a convention."

"He seemed yet to be convinced.'' — ''He seemed not yet to have been convinced."
Yet as an adverb:

In addition.

Examples:

"There are two hours yet to go until our destination."
Yet as an adverb (degree):

Even.

Examples:

"K-2 is yet higher than this."