He decided to snitch up his friend to avoid getting in trouble.

The government's new policy shores up the economy.

The government is shoring up the economy with stimulus packages.

The government shored up the economy with a stimulus package.

The investigation leads up to the arrest of the suspect.

The events leading up to the concert were filled with excitement.

The events that led up to the accident were unexpected.

I didn't expect him to chime up during the meeting.

I need to sprucen up my living room before the guests arrive.

She loves dolling up for special occasions.