English Dictionary

across

/əˈkɹɒs/

adv

From one side to the other. / On the other side. / In a particular direction. / (crosswords) Horizontally.

He walked across the street.

意味（1）

From one side to the other.

[The researchers] noticed many of their pieces of [plastic marine] debris sported surface pits around two microns across. Such pits are about the size of a bacterial cell. Closer examination showed that some of these pits did, indeed, contain bacteria, […].

意味（2）

On the other side.

If we sail off at noon, when will we be across?

意味（3）

In a particular direction.

He leaned across for a book.

意味（4）

(crosswords) Horizontally.

I got stuck on 4 across.