abuse/ bale/ blow/ bruise/ concussion/ contusion/ dint/ hit/ hurt/ injury/ invective/ jeer/ jest/ nuisance/ quirk/ sarcasm/ scathe/ scoff/ taunt/ trauma/ wisecrack/ wound/ wrong
acme/ apex/ cop/ hilltop/ peak/ pinnacle/ queue/ summit/ top/ vertex/ zenith
alert/ diligent/ guarded/ knowing/ vigilant/ (on the)watch/ watchful
alert/ cautious/ guarded/ scared/ vigilant/ wary/ watchful/ wide awake