increase in activity; activation
emergence (in evolutionary theory, systems theory, etc.)
component; factor; item (e.g. in list); element (e.g. in array); member (e.g. data structure)
lost child; lost person; stray child; missing child
line; queue; procession; matrix
nest; rookery; den; haunt; (spider's) web
low rank; lower position; subordinate position; lower order (e.g. byte)
to form; to shape; to make; to mold; to mould; to build up
cannot do without something; indispensable; absolutely necessary; have to do
explanation (of a text, phrase, etc.); lecture; explanation (in a pompous fashion); (long-winded) lecture; (arch.) storytelling
seat; place; position; status; gathering; party; stand
core; heart (of the matter); point; crux; kernel
leaping; activity; leapfrog (over a problem); making a leap (e.g. in logic); making great strides; making rapid progress
surgery; department of surgery (hospital, etc.)
reflection; reverberation; reflex; reflexes
to be furnished with; to be provided with; to be possessed of; to be endowed with; to be among; to be one of
foundation; basis; bedrock; substrate (circuit board)
unhurt; uninjured; flawless (e.g. gem); unblemished; spotless (e.g. reputation); faultless (e.g. performance)
human vegetable (i.e. someone in a vegetative state)
(suffering) damage; injury; harm
to reach; to amount to; to be up to the task; to come up to; to compare with; to be a match (for)
autonomic nervous system; ANS
regulation; adjustment; control
cooperation; coordination; link
pleasure; delight; enjoyment
to play a role; to serve a function; to play a part
degree (of something); greatness or smallness (of something); quantity; number; amount; size
main constituent; core; nucleus; subject (philosophical); protagonist
one's say; one's point; complaint; grievance; objection