打撃 (だげき, dageki) Japanese meaning: blow | Kotomoraに
大
きな
打
撃
を
与
え
た
。
The incident dealt a heavy blow to the company.
He received a strong blow to the head and collapsed.
Usage patterns
〈事〉に打撃を与えるto deal a blow to (something, e.g. the economy)
The typhoon dealt a heavy blow to agriculture.
打撃を受けるto suffer/receive a blow (damage)
The company suffered a serious blow from the recession.
打撃から回復するto recover from a blow (damage)
The local economy is gradually recovering from the disaster's blow.
〈相手〉に打撃を加えるto strike a blow against an opponent
That single win struck a blow against the opposing team.
打撃 means a blow or impact and can be used figuratively (e.g. financial damage), while 殴打 refers strictly to physically striking a person.
打撃 is a broader word for an impact or blow (physical or figurative, including damage), whereas 一撃 specifically means one single strike.