keep tabs on

1. Observe carefully, keep a record of. For example, I hate having my boss keep tabs on my every move, or We've got to keep tabs on outgoing mail so we can keep track of postage. This expression uses to tab in the sense of “an account.” [Late 1800s] Also see keep track.

Related Words

• attend 
• check out 
• examine 
• follow 
• listen 
• look 
• observe 
• regard 
• scan 
• scrutinize 
• see 
• stare 
• view 
• wait