step in
ste·pin
verb
1.
2.
act as a substitute
- “She stood in for the soprano who suffered from a cold”
noun
Origin
From step + in.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.