I got it; I see; I now know; So that's the reason
place; room; margin; scope
class; level; stratum; layer; hierarchy
inconvenience; inexpediency; unhandiness
to wrinkle; to crinkle; to shrivel
cruelty; hard-heartedness
bonds (between people); (emotional) ties; relationship; tether; fetters
to raise one's hand; to surrender; to raise one's hand to someone (as a threat to strike); to become better (at something); to improve; to throw one's hat in the ring
considerable; great; important; significant; a big deal
interest (in something); enthusiasm
to rub on; to rub against; to wipe on; to lay the blame on
killing time; staving off boredom
to go upstream; to go back (in time, to origin); to date back to; to trace back to