'cot' and 'camp bed' In American English, a cot is a narrow bed for an adult. It is made of canvas fitted over a frame, and you can fold it up. You take it with you when you go camping, or you use it as a spare bed at home. In British English, a bed like this is called a camp bed.
Across is a preposition. It describes the relationship between two persons, places, or things. It is sometimes used with the preposition from. Example: That house is across the street. Cross is most commonly a verb or noun. Crossed is the past tense or past participle of the verb to cross.
3 prep If something is lying across an object or place, it is resting on it and partly covering it. (=over) She found her clothes lying across the chair..., The wind pushed his hair across his face. 4 prep Something that is across something such as a street, river, or area is on the other side of it.