noun

1. Any German submarine of the First World War, First or Second World War, or any Austro-Hungarian submarine of the First World War.

adjective

1. defenceless and lacking weapons or armour
2. not carrying arms
3. (biology) not having thorns or claws etc.

noun

1. The code of military law written for the use of the United States Armed Forces.

noun adjective (notcomp)

1. For each unit.

We have to keep our unit costs down if we want to make a profit.

1. (math) Having a size or magnitude of one.

All solutions lie within the unit disc centered at the origin.

verb

1. (transitive) To take off or remove the load from something
   
2. (transitive) To discharge the cargo of a ship
   
3. (transitive) To discharge or pour a liquid
   
4. (transitive) To give vent to or express
   
5. (transitive) To get rid of or dispose
   
6. (transitive) To deliver something forcefully
   
7. (intransitive) To take off its load.
   
8. (intransitive) To discharge its cargo.
   
9. (intransitive) To confide in someone.

verb

1. (transitive) to remove a mask from someone
2. (transitive) to expose, or reveal the true character of someone
3. (intransitive) to remove one's mask

adjective (further upstairs, furthest upstairs)

1. located higher up a building.

They can sleep in the bedroom.

adverb (further upstairs, furthest upstairs)

1. Up the stairs; on a higher floor or level.
   

   I'll take my shoes and put them away the next time I go .
   

   I hate the people who live , and I especially hate their piano.

initialism

1. United States, United States of America.
2. United States Army.

initialism

1. The United States Coast Guard.

initialism

1. The United States Marine Corps.

initialism

1. The United States Navy.

Microsoft Windows: Update Sequence Number

proper noun

1. A (USstate) Capital: Salt Lake City.