in line

adjectives

being next in a line of succession
"he was in line for the presidency"
in line
is similar to
coming after or following
succeeding
awaiting something; especially something due
"people were in line at the checkout counter"; "she was in line for promotion"
in line
is similar to
qualified for or allowed or worthy of being chosen
"eligible to run for office"; "eligible for retirement benefits"; "an eligible bachelor"
eligible

adverbs

one behind another in a line or queue
"they waited in line for the tickets"
in line