We found 27 dictionaries that define the word step up:

General (18 matching dictionaries)

1. step up: Longman Dictionary of Contemporary English
2. step-up: American Heritage Dictionary of the English Language
3. step-up, step-up, step up: Collins English Dictionary
4. step-up, step up: Vocabulary.com
5. Step-Up, Step-up, step-up: Wordnik
6. step-up, step up: Wiktionary
7. step-up: Webster's New World College Dictionary, 4th Ed.
8. step-up: The Wordsmyth English Dictionary-Thesaurus
9. step-up: Infoplease Dictionary
10. step-up, step up: Dictionary.com
11. Step Up (Darin song), Step Up (Drowning Pool song), Step Up (Flamin' Groovies album), Step Up (Original Soundtrack), Step Up (Tower of Power album), Step Up (album), Step Up (film), Step Up (film series), Step Up (franchise), Step Up (song), Step Up, Step up: Wikipedia, the Free Encyclopedia
12. step-up, step up: Rhymezone
13. step-up, step up: FreeDictionary.org
14. step-up, step up: Mnemonic Dictionary
15. step-up, step up: TheFreeDictionary.com
16. step-up, step up: Merriam-Webster

Business (5 matching dictionaries)

17. Step-up: bizterms.net
18. Step up: Bloomberg Financial Glossary
19. Step Up (disambiguation), step up: Legal dictionary
20. Step-Up, Step Up (disambiguation), Step up: Financial dictionary
21. MoneyGlossary.com (No longer online)

Computing (1 matching dictionary)

22. step-up, step up: Encyclopedia

Medicine (1 matching dictionary)

23. step up: Medical dictionary

Miscellaneous (1 matching dictionary)

24. step up: Idioms

Slang (1 matching dictionary)

25. Totally Unofficial Rap (No longer online)

(Note: See step_ups as well.)

Definitions from Wiktionary (step up) ▸ verb:  (transitive, idiomatic) To increase, augment, or advance, especially by one or more steps. ▸ verb:  (intransitive, idiomatic) To assume or take responsibility. Similar: escalate, rev up, step forward, intensify, come forward, come out, come to the fore, step to the fore, increment, step up one's game, more... Opposite: step down, decrease, lower, descend Types: lunge, calf raise, box jump, step-up, more... Phrases: step up transformer, step up bond, step up to the plate, step up in basis, step up lease, more... Adjectives: elevate, assurgent, step-up, rising, uplevel, upcast, up, upstage, ascendant, well up, ascending ▸ Words similar to step up ▸ Usage examples for step up ▸ Idioms related to step up ▸ Wikipedia articles (New!) ▸ Words that often appear near step up ▸ Rhymes of step up ▸ Invented words related to step up