show up

Short definition from Wiktionary

Verb

1. 1
   To appear, arrive, or attend, especially suddenly or erratically.
2. 2
   To be easily visible; to be conspicuous.
3. 3
   To make visible; to expose.
4. 4
   To make visible or expose faults and deficiencies in, usually by outdoing, outperforming, or outcompeting another.
5. 5
   To produce an impression on observers; to come off.

Noun

1. 1
   The showing of a suspect to a victim by police in the hope of identifying the suspect as the culprit.
2. 2
   At Eton College, a reward for good schoolwork (which is shown to one's housemaster and tutor and signed).