They decided to settle their disagreement with a thumb-a-war.

He sticks out like a sore thumb in the crowd.

He stuck out like a sore thumb at the party.

She was sticking out like a sore thumb at the party.

The book was thumbmarked with greasy fingerprints.

The document was thumbprinted to ensure its authenticity.

There are many thumbnailers available for image editing software.

The thumbnailer automatically generates thumbnails for images.

He had blisters on the balls of his thumbs from playing guitar all day.

There are many rules-of-thumb that can help you make decisions.