to sink; to go under; to go down (e.g. sun); to set; to feel depressed; to become subdued
to sink (e.g. a ship); to submerge; to lower (e.g. one's body into a chair); to floor (an opponent)
to sink (into); to get depressed
to sink (into one's seat, etc.); to leap to one's death (by drowning); to be reduced to (esp. working as a prostitute)
ups and downs; bobbing up and down; rising and falling; ebbing and flowing
sinking; submerging; sinker; weight
low spirits; depressed heart
to abandon oneself to grief
floating up and sinking down; rising and falling
to be knocked out; to be overwhelmed; to be flabbergasted; to be thrown for a loop
there are exceptions to every rule; (lit.) rocks will flow and leaves will sink
life has its ups and downs; he who falls today may rise tomorrow