Wordnet 3.0
ADJECTIVE (1)
1. 
 ready for immediate use; 
- Example: "soldiers with guns at the ready"- Example: "students with pens and notebooks at the ready"
WordNet (r) 3.0 (2006):
at the ready
    adj 1: ready for immediate use; "soldiers with guns at the
           ready"; "students with pens and notebooks at the ready"