crevice; crack; spare moment; interval; chink (in one's armor, armour); unpreparedness
in good health; alive and well; going strong
strange occurrence; unusual occurrence; unexpected occurrence; grave and unexpected occurrence
to be closed; to be blocked; to be clogged; to be plugged up; to be occupied; to be taken (e.g. accommodation)
to drill; to bore; to hit the mark; to get to the heart of (the matter); (arch.) to put on; (arch.) to wear
hole; opening; pit; hollow; burrow; den; deficit
one o'clock; once; at one time; for a time; for a while; a time
to be absent; to take a day off; to rest; to have a break; to go to bed; to (lie down to) sleep
as one would expect; naturally; indeed; still; all the same; after all
root; source; origin; cause
to let (someone) hear; to tell (e.g. a story); to make (someone) listen; to make (someone) understand; to grip (someone) with skilful singing, storytelling, etc.; to hold (someone) enchanted by
pretext; history; past; according to ...; ... says
custom; practice; said; aforementioned; instance; example
explanation; exposition; description; account; caption; legend
to read and understand; to take in; to sense from external cues; to read (someone's) mind; to read (calibration, tape, etc.); to scan (bar code)
instability; insecurity; crankiness
steady state; stable state
seems to be; appears to have; supposed to be
genuine article; real thing; real deal
to hit (e.g. one's head); to strike; to throw (e.g. a ball, a question, a demand); to express; to vent (e.g. one's anger)
event; phenomenon; matter
level ground; horizon; field of view
indicates supposition; if ... then; when; (typically after someone's name) indicates exasperation
something-something (e.g. platitudes, waffling); yada yada; so-and-so
at that time; in those days
incontinence; soiling oneself; wetting one's pants; discharge (e.g. of contaminants); effluence
abstract or impracticable theory
treatment; service; handling (of a machine, tool, etc.); operation; treating as; treating like
detailed; full; minute; knowing very well; knowledgeable (about); well-acquainted (with)
investigation; examination; inquiry; enquiry; survey
ratio; proportion; percentage
depending on; dependent on
aeroplane; airplane; aircraft
(the) mainstream; main course (of a river); main stream
bird; bird meat (esp. chicken meat); fowl; poultry