a machine, a device; a contraption / a loom / an opportunity, a chance to do something; the right time or moment / something of great importance: the linchpin of the matter

indicates aircraft / indicates paper aeroplanes / indicates lives in video games

a trap or snare that works by beheading the bird or beast caught in it

manipulation (as in a device) / manipulation (as in a person): deception, taking someone in / getting on someone's right side; humoring someone; an effort to please someone

indicates machines / indicates airplanes

mechanism / machine / airplane / opportunity

incontinence pad

knowledge is power

a boast of one's strength / a person who boasts of his or her own strength

Kyūjitai form of 体力 bodily strength, physical power