Synonyms for r d
- analysis
- exploration
- inquiry
- investigation
- probe
- delving
- experimentation
- groundwork
- inquest
- inquisition
- probing
- quest
- scrutiny
- R and D
- fact-finding
- fishing expedition
- legwork
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Antonyms for r d
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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.