call / appeal

in-draught, air suction / knock-on effect, domino effect, unintended consequence (be it good or bad)

(business) invitation to tender, request for tender(s), call for tender(s), request for proposal

(transitive with de) (law) to appeal / (transitive with à) to call on, to call upon, to call in; to appeal to, to make an appeal to; to use, to make use of

(law) peremptory (precluding debate or expostulation; not admitting of question or appeal)

missed call

(typography) footnote callout

flash of one's headlights

call to arms

cry for help / cry for help (acting out as a means of displaying a subconscious desire for attention or help)