merciless; ruthless; pitiless; unfeeling
that; the matter in question
welcome!; nice to see you!
to imitate; to copy; to mock; to trace; to forge
unit; (musical) group; band
transmission (e.g. news, chemical signals, electricity); communication; delivery; conveyance; transfer; relay
incomprehensible; nonsensical; puzzling; mysterious; meaningless
observation; survey; measurement; opinion; prediction; thinking
to keep someone from doing; to stop; to prevent; to check; to hinder; to obstruct
original; unique (e.g. product); signature; exclusive
to be sacrificed; to fall victim to; to fall prey to
administrator; janitor; manager; custodian; executor
very interesting; of great interest
as expected (positive events); as hoped for
base; basis; base (e.g. military); depot; base; base bag
one's nature; one's feelings; plain; unadorned; mere; poor
combination; union; binding; bond
study; research; investigation
(good) result; outcome; fruits (of one's labors); product; accomplishment
incomprehensible; nonsensical; puzzling; I don't get it; I'm confused; I'm lost
brittle; fragile; weak; tender-hearted; sentimental; easily moved
disassembly; dismantling; factorization; decomposition; resolution; deblocking
reconstruction; reorganization; reorganisation; reconstitution; reconfiguration
scattered; disperse; loose; disconnected; in pieces; in drops
demolition; taking down; dissolution (of an organization, company, etc.); breaking up; dissection (of a body); dismemberment
circle and cross; right and wrong (answers); true-false
genuine article; real thing; real deal
event; phenomenon; matter
oscillation; vibration; swing (e.g. of a pendulum)
singularity; singular point
sign; indication; omen; symptom
to attach; to join; to furnish (a house with); to wear; to put on; to keep a diary; to make an entry
difference; distinction; discrepancy; mistake; error