og

and(conjunction)

joining two statements, pieces of information etc

I opened the door and went inside; The hat was blue and red; a mother and child.

og, pluss

and(conjunction)

in addition to

2 and 2 makes 4.

og (så)

and(conjunction)

as a result of which

Try hard and you will succeed.

å

and(conjunction)

used instead of `to' with a verb

Do try and come!