alarm

anxiety apprehension consternation dismay dread horror nervousness panic scare tension terror trepidation unease uneasiness

distress fright strain stress

cold feet

assurance calm calmness collectedness composure confidence contentment ease encouragement happiness peace tranquility

health

quietness repose security

alert buzzer caution cry signal warning whistle

Mayday SOS bell blast call clock drum flap flash forewarning gong horn nod scramble scream shout sign siren squeal tip tocsin trumpet wink yell

high sign tip off

assurance calmness composure confidence peace quietness repose security

amaze astonish daunt dismay frighten scare startle surprise terrify unnerve

chill distress panic spook

give a turn make jump scare silly scare stiff scare to death

calm comfort encourage expect

assure gladden reassure repose soothe