lonely; lonesome; solitary; desolate
old enemy; longtime enemy; arch-enemy; traditional rival; longstanding foe
resembling closely; being strikingly similar; bearing a strong likeness
to ascertain; to make sure of; to determine; to probe; to get to the bottom (of something)
to engage (with); to be in gear (with); to bite each other; to be on the same wavelength
to shut oneself in (e.g. one's room); to be confined in; to be filled with (emotion, enthusiasm, etc.); to fill the room (of a gas, smell, etc.); to be heavy with (e.g. smoke); to be muffled (e.g. voice); to hold (a castle, fortress, etc.)
characteristic; like oneself; worthy of oneself
victory or defeat; match; contest; game
to start; to begin; to challenge; to pick (a fight); to set (traps); to plant (explosives)