As is the general case, as is typical. Example: He is late for class as usual.
Finally, after a long time. Example: He waited for hours and the bus arrived at last.
To wear formal clothes, to dress very nicely. Example: We should definitely dress up to go to the theater.
In the beginning, originally. Example: At first English was difficult for me, but later I made great progress.
To arise, or to rise from a bed. If the idiom is used for "to rise from a bed, a noun must separate the verb and the particle. Examples: Sam gets up at six o'clock every morning. At what time should I get our children up tomorrow morning?
Evventually, after a period of time. Examples: If you study English seriously, sooner or later you'll become fluent.
To lift from the floor, table, etc., with one's fingers. This idiom is separable, a noun or a noun phrase may be placed between the verb and the particle. John picked up the newspaper that was on the front doorstep. Could you pick your toys up, please?
Very soon, immediately, also "at once". Examples: Tell him to come to my office right away. I must see him immediately.