active mobility active mode active modes active moiety active molecule active molecules active monitoring active monthly users active most active movement active music active national active natural active negotiations active network active networks active noise active noise cancellation active noise cancelling active noise control active noise reduction active now active nuclear active object active offer active offers active oil active on facebook active on instagram active on social active on social media active on the market active on twitter active one active ones active online active only active only when active operation active operations active optical active or inactive active or not active or passive active or retired active outdoor active ownership active oxygen active oxygen content active packaging active page active parents active parish active park active part active participant active participants active participation active participle active particles active partition active partner active partners active partnership active partnerships active parts active patients active pen active people active peptide active peptides active period active person active personnel active persons active pharmaceutical active pharmaceutical ingredient active pharmaceutical ingredients active phase active phases active phone active pixel active play active player active players active playing active police active policies active policy active political active politically active politician active politics active polymer active polypeptide active population active port active portion active position