then

that time

• We were very tired by then.
• Since then, I have been afraid of clowns.

links items in a sequence

• She parked the car, then she locked it.

If . . . then constructions

• If you want more salad, then get some.

than

used to compare

• That dog is smaller than all the rest.
• Your paper is more wrinkly than mine.
• This book is harder to understand than the last one.

This is the spelling you’d use for more than, less than, rather than, or other than.