1. On the job
   "had been at work for over an hour before her boss arrived"

See also: busy

• insectivorous
• insecure
• insecurely
• insecureness
• insecurity
• inseminate
• insemination
• insensate
• insensately
• insensibility
• insensible
• insensibly
• insensitive
• insensitively
• insensitiveness
• insensitivity
• insentience
• insentient
• inseparability
• inseparable
• inseparableness
• inseparably
• insert
• insertion
• insertional mutagenesis