elementary; basic; rudimentary
permanent; perpetual; persistent; lasting
to overstep the mark; to go too far; to overdo it
finished product; finished goods; completed article
just a handful; only a small number (of)
leap; jump; stepping out into the wider world; becoming active on a wider stage; rapid progress; dramatic development
intuition; instinct; hunch
serious crime; grave sin; mortal sin; deadly sin
making rapid progress; making great advances; rush; dash; onslaught
roasting; grilling; toasting; tempering (in metallurgy)
soldering iron; hot iron; brand; mark; stigma
somersault; returning from a destination right after arriving there; non-stop round trip; abrupt change of direction
stamp; sticker (in messaging apps); (large) emoji
flat; level; calm; tranquil; relaxed (sitting posture); comfortable
movie; film; motion picture
poisonous; venomous; hateful; detestable; gaudy; garish
reasonable (price, fee, fare, rate, etc.); reasonably priced; affordable; reasonable (judgment, policy, response, etc.); appropriate; sensible
to go unpunished; to be tolerated; to be allowed; to be overlooked
steadily; unflaggingly; untiringly; knocking; tapping; clicking
highest rank; highest position; high-end; highest-order; most-significant (e.g. bit)
a piece; a scrap; a fragment; iota; modicum; trace
based on; on the basis of
place of origin (of a plant or animal species, etc.); natural habitat; original home; place of origin (of manufactured goods)
wooden building blocks; wooden bricks; playing with building blocks; piled timber; piling up wood
pathological; morbid; unhealthy; diseased; unwholesome; abnormal
to slip out; to steal out; to excel; to stand out
fetus; foetus; embryo; baby in the womb; unborn baby
opening suddenly and widely (e.g. eyes)
foundation; base; basis; from the beginning; from the outset; by nature
mistake; error; discrepancy; discrepancy between one's actions and intentions
plan; idea; design; taste; liking; preference