A mild brain injury caused by a blow to the head or violent shaking, typically involving a brief loss of consciousness, dizziness, or nausea but no permanent damage.

to surge; to rage; to dash; used to describe the violent movement of water or air due to impact

To play on a swing by sitting or standing on it and moving back and forth.

a policy or period of reduced tension between countries; a phonetic loan from French 'détente'

to hang suspended; to dangle or swing freely

an electronic circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency

to shake; to rock

to engage in a brainstorming process, either individually or in a group, to generate ideas or solutions through creative thinking and discussion

A problem-solving technique using group discussion to stimulate creative thinking, where all ideas are encouraged and respected without initial criticism to find innovative solutions.

extremely moving or soul-stirring; heart-rending; describes music or literature that lingers in the mind and deeply affects one's emotions

heart-rending and soul-stirring; describing a melody or poem that is deeply moving or affecting