to work hard; to work diligently
grandfather (may be used after name as honorific); male senior-citizen (may be used after name as honorific)
thought experiment; gedankenexperiment
struggling; pawing (e.g. horses' hooves)
to pay no heed to; to not care about; to take no notice of
old tale; folk tale; legend; reminiscence
to participate in (as a member); to get involved in
behind closed doors; behind-the-scenes; (under the veil of) secrecy
transport; transportation; conveyance; carriage
artificial; man-made; human work; human skill; artificiality
region; limits; stage; level
sole; single; solo; independence; singleness; singularity
combination; assortment; matching (in a contest); pairing; combination
should do; ought to do; must do
receiver; receiving set; receiving apparatus (equipment)
internal (e.g. disk); built-in; equipped (with)
eardrum; tympanic membrane
to copy; to imitate; to counterfeit; to forge
full view; plain sight; completely visible
discrimination; discernment; identification
hostility; animosity; enmity
malice; malicious intent; intent to kill
it is none of one's business; it is not one's place to say (do) something
advice (to a superior); counsel; proposal; suggestion; recommendation
exit (from a stage); exeunt; leaving; exit
extermination; annihilation
nest; rookery; den; haunt; (spider's) web
source (of a transmission, broadcast, etc.); point of origin
class; heading; group; category
outskirts (of a town); run-down district
hinge; joint (esp. an anatomical joint)
element (esp. component in electronics); elemental device; device; data; datum
consideration; taking into account
painstaking; careful; meticulous; scrupulous; detailed; elaborate
private property; personal belongings; personal effects
to tailor; to make (clothing); to train; to bring up; to make it seem like; to pass off