in_line
1. [ adverb ] one behind another in a line or queue
Examples:

"they waited in line for the tickets"

2. [ adjective ] awaiting something; especially something due
Examples:

"people were in line at the checkout counter" "she was in line for promotion"

Related terms: eligible
3. [ adjective ] being next in a line of succession
Examples:

"he was in line for the presidency"

Related terms: succeeding
Similar spelling:   inulin
  inland
  inland_sea
  inhaling
  in_length