look intently

evocative of something light or fragile falling gently in a wafting or fluttering fashion / evocative of a single tear falling from one's eyes / evocative of moving one's body gently or stepping li...

a landslide, an avalanche (of rocks and soil, not snow)

simple substance / Short for 単体テスト (tantai tesuto, “unit test”). / solo; monad; a unit composed of one