Meanings

falling suddenly

watch your step

falling to the ground like a Buddha statue being thrown down

falling due to a strong wind

chain-reaction bankruptcy

tending to find things bothersome

uncollectable accounts

extremely bothersome

inverted pendulum

inverted image

inverted-type (e.g. shock-absorber)

postponement

to fall

to knock down

domino toppling

tree blown down by the wind

even Homer nods

movement to overthrow the shogunate (mid-19th century)

to begrudge doing

without getting annoyed