a sharp increase in growth after a period of slow progress
ゆっくりした進歩の後に急激な成長 (yukkuri shita shinpo no ato ni kyugeki na seicho)
"The startup saw hockey stick growth after launching their new feature."
"スタートアップは新機能をリリースした後、『ホッキースティック型』の成長を見せた。" (sutaatoappu wa shinkinou o ririisu shita ato hokkiisutikku gata no seicho o miseta)
to spread gradually among people
to start loving someone; to develop romantic feelings
to help someone out of a difficult situation
a sudden clever idea or solution
to strengthen or support something
to take responsibility for something bad.