monitor, watch, observe, oversee, supervise, guard, track, check, scrutinize, follow, survey, inspect, patrol, mind, look after, keep tabs on, keep watch over, keep track of, keep under surveillance,... [more]
maintain - retain - preserve - hold - save - store - conserve - uphold - sustain - protect - guard - continue - perpetuate - support - secure - withhold - possess - control - manage - care for - look after - nurture - shelter - safeguard - defend - keep up - keep on - keep hold of - keep in check - keep safe - keep intact - keep going - keep alive - keep under control - keep in mind - keep track of - keep an eye on - keep at bay - keep in place - keep in order - keep in reserve - keep in stock - keep in touch - keep in line - keep in shape - keep in good condition - keep in balance - keep in perspective
To continue having or holding (something): to not return, lose, sell, give away, or throw away (something). To make someone or something stay in a particular state or condition. Frequently used in contexts such as business, memory, and personal habits.