spine; line of the backbone; seam down the back (of clothing)
midwinter; cold season; coldest days of the year
alternately; by turns; one after the other
to spring at; to leap upon; to swoop down on; to throw oneself upon (e.g. an enemy)
to get entangled (with each other); to get muddled together
to collapse into; to flop onto
origin; source; beginning; starting point
horseback riding; sitting astride; straddling
to sing; to sing (one's praises in a poem, etc.); to compose a poem; to recite a poem
to struggle; to writhe; to wriggle; to act frantically; to make desperate efforts
to press down; to hold down; to pin down; to suppress (feelings, disorder, opposition, etc.); to repress
to falter; to flinch (from); to recoil (from); to quail (at)
exit; gateway; way out; outlet; vent; leak
disturbance of mind; losing one's head; being upset; transition; changing; moving
to break; to snap; to be injured; to wear out; to be worn out; to break; to burst
to lay hands on; to touch; to care for; to look after; to make off with; to steal
mechanism; machinery; trick; dodge; mechanical doll; string puppet
annulation; ring shape; loop shape
clasp; latch; catch; fastener
clanging; empty; deserted
metal plate; metallic plate
exposed; scanty; bare; public; open
to take notice (of); to pay attention (to)
top and bottom; high and low; going up and down; rising and falling; going and coming back; upper and lower classes
infinity; infinitude; eternity; infinite; limitless
focus (e.g. photographic); focal point
what with this and that; for a number of reasons
to go out of use; to become obsolete; to die out; to go out of fashion
study; scholarship; learning; discipline; branch of learning; (a) science
swaying (only once, in a large, slow motion); relaxedly
exchange; interchange; switching; reciprocity; barter; substitution
replenishment; supplementation; supplement; replacement; refilling
scattering; diffusion; spread (e.g. signal across the spectrum)
to become dim; to become blurred
to fall (e.g. blossoms, leaves); to scatter; to be dispersed; to disappear; to dissolve; to spread
to be transparent; to be see-through; to be clear; to be clear (voice, sound)
long; drawn-out; very long
reliance; trust; faith; confidence
willingly; voluntarily; on one's own accord
(any) particular; special; material; perceptible; noticeable
injury; harm; evil influence; damage
neighbourhood; neighborhood
to wish to go well; to have good intentions