We found 4 dictionaries that define the word speeding up:

General (4 matching dictionaries)

1. speeding up: Collins English Dictionary
2. speeding up: Vocabulary.com
3. speeding-up, speeding up: Wordnik
4. speeding up: Wiktionary

▸ Words similar to speeding up ▸ Usage examples for speeding up ▸ Idioms related to speeding up ▸ Wikipedia articles (New!) ▸ Words that often appear near speeding up ▸ Rhymes of speeding up ▸ Invented words related to speeding up