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MASS | English meaning - Cambridge Dictionary
Mass Definition & Meaning - Merriam-Webster
MASS Definition & Meaning | Dictionary.com
Mass - Wikipedia
MASS definition and meaning | Collins English Dictionary
Mass | Definition, Units, & Facts | Britannica
MASS | meaning - Cambridge Learner's Dictionary
mass noun - Definition, pictures, pronunciation and usage notes ...
Mass Definition & Meaning | Dictionary.com
What Is Mass? Mass Definition in Science - Science Notes and …