Heads vs. Up - What's the difference?

Heads (interjection)

A shouted warning that something is falling from above, mind your heads.

Heads (noun)

plural of head.

Heads (noun)

That part of older sailing ships forward of the forecastle and around the beak, used by the crew as their lavatory; still used as the word for toilets on a ship.

Heads (noun)

The side of a coin that bears the picture of the head of state or similar.

"obverse"

"tails"

"Heads, I win."

Heads (noun)

clipping of headphones

"Pass me the heads, I wanna listen."

Heads (noun)

Draft scheme of a bill before it is formally introduced to a parliament.

Heads (noun)

Tiles laid at the eaves of a house.

Heads (noun)

High-grade marijuana.

Up (adverb)

Away from the surface of the Earth or other planet; in opposite direction to the downward pull of gravity.

"I looked up and saw the airplane overhead."

Up (adverb)

Used as an Thoroughly, completely.

"I will mix up the puzzle pieces."

"Tear up the contract."

"He really messed up."

"Please type up our monthly report."

Up (adverb)

To or from one's possession or consideration.

"I picked up some milk on the way home."

"The committee will take up your request."

"She had to give up her driver's license after the accident."

Up (adverb)

North.

"I will go up to New York to visit my family this weekend."

Up (adverb)

To a higher level of some quantity or notional quantity, such as price, volume, pitch, happiness, etc.

"Gold has gone up with the uncertainty in the world markets."

"Turn it up, I can barely hear it."

"Listen to your voice go up at the end of a question."

"Cheer up, the weekend's almost here."

Up (adverb)

Traditional term for the direction leading to the principal terminus, towards milepost zero.

Up (adverb)

Against the wind or current.

Up (adverb)

In a positive vertical direction.

Up (adverb)

Relatively close to the batsman.

"The bowler pitched the ball up."

Up (adverb)

Without additional ice.

"Would you like that drink up or on ice?"

Up (adverb)

Towards Cambridge or Oxford.

"She's going up to read Classics this September."

Up (adverb)

To or in a position of equal advance or equality; not short of, back of, less advanced than, away from, etc.; usually followed by to or with.

"I was up to my chin in water."

"A stranger came up and asked me for directions."

Up (adverb)

To or in a state of completion; completely; wholly; quite.

"Drink up. The pub is closing."

"Can you sum up your research?"

"The comet burned up in the atmosphere."

"I need to sew up the hole in this shirt."

Up (adverb)

Aside, so as not to be in use.

"to lay up riches; put up your weapons"

Up (preposition)

Toward the top of.

"The cat went up the tree."

"They walk up the steps."

Up (preposition)

Toward the center, source, or main point of reference; toward the end at which something is attached.

"The information made its way up the chain of command to the general."

"I felt something crawling up my arm."

Up (preposition)

Further along (in any direction).

"Go up the street until you see the sign."

Up (preposition)

From south to north of

Up (preposition)

From the mouth towards the source (of a river or waterway).

Up (preposition)

Of a man: having sex with.

"Phwoar, look at that bird. I'd love to be up her."

Up (preposition)

At (a given place, especially one imagined to be higher or more remote from a central location).

Up (adjective)

Awake.

"I can’t believe it’s 3 a.m. and you’re still up."

Up (adjective)

Finished, to an end

"Time is up!"

Up (adjective)

In a good mood.

"I’m feeling up today."

Up (adjective)

Willing; ready.

"If you are up for a trip, let’s go."

Up (adjective)

Next in a sequence.

"Smith is up to bat."

Up (adjective)

Happening; new.

"What is up with that project at headquarters?"

Up (adjective)

Facing upwards; facing toward the top.

"Put the notebook face up on the table."

"Take a break and put your feet up."

Up (adjective)

Larger; greater in quantity.

"Sales are up from last quarter."

Up (adjective)

Ahead; leading; winning.

"The home team were up by two goals at half-time."

Up (adjective)

Standing.

"Get up and give her your seat."

Up (adjective)

On a higher level.

"The new ground is up."

Up (adjective)

Available; made public.

"The new notices are up as of last Tuesday."

Up (adjective)

Said of the higher-ranking pair in a two pair.

"AAKK = aces up"

"QQ33 = queens up"

Up (adjective)

Well-informed; current.

"I’m not up on the latest news. What’s going on?"

Up (adjective)

Functional; working.

"Is the server back up?"

Up (adjective)

Traveling towards a major terminus.

"The London train is on the up line."

Up (adjective)

Headed, or designated to go, upward, as an escalator, stairway, elevator etc.

Up (adjective)

Chilled and strained into a stemmed glass.

"A Cosmopolitan is typically served up."

Up (adjective)

Erect.

Up (adjective)

Above the horizon, in the sky (i.e. during daytime or night-time)

Up (adjective)

well-known; renowned

Up (noun)

The direction opposed to the pull of gravity.

"Up is a good way to go."

Up (noun)

A positive thing.

"I hate almost everything about my job. The only up is that it's so close to home."

Up (noun)

An upstairs room of a two story house.

"She lives in a two-up two-down."

Up (verb)

To increase or raise.

"If we up the volume, we'll be able to make out the details."

"We upped anchor and sailed away."

Up (verb)

To promote.

"It wasn’t long before they upped him to Vice President."

Up (verb)

To act suddenly, usually with another verb.

"He just upped and quit."

"He upped and punched that guy."

Up (verb)

To ascend; to climb up.

Up (verb)

To upload.

"100 new apps and games have just been upped."