To agree or correspond.
Line up
To play as centre forward. (ex. Karim Benzema or Lionel Messi)
Lead the line
Write (a note or a telegram), call or visit someone/somebody.
Drop someone/somebody a line
The end results of any case or the final balance (money-related)
Bottom Line
To submit to the rules of a higher authority; obey; conform.
Fall in line
To state something, for example an ultimatum, strongly and clearly.
Lay it on the line
A clear distinction in the context of a legal or moral judgment.
Bright line
To delimit a boundary or border.
Draw a line
As part of or while performing official duties, usually of the military or police personnel, or of government officials.
In the line of duty
Suitable or appropriate; keeping with expectations, norms, ideals, or rules.
In line
To overstep a boundary, rule, or limit; to go too far or do something unacceptable.
Cross the line
Totally, completely, without reservation.
Hook, line and sinker
A difference, albeit vague and difficult to discern.
Fine/thin line
Beyond the level of what is acceptable.
Over the line
To formalize an agreement.
Sign on the dotted line