to lock (a door, etc.); to lock up
to go to and from (a place); to go back and forth between; to go to (school, work, etc.); to attend; to circulate (e.g. blood, electricity); to be communicated (e.g. thought)
oath; vow; pledge; covenant
start; beginning; starting (e.g. a race); departing; starting point
to deem acceptable; to approve of; to value; to consider a good thing
to live; to make a living; to get on with
to be duplicated; to be repeated; to overlap; to fall together (of dates, etc.); to repeat (a failed course, school year, etc.); to make a double play
to get one's head around; to think about
to use (a tool, method, etc.); to make use of; to use (a person, animal, puppet, etc.); to employ; to use (time, money, etc.); to spend
this and that; one thing or another
to run through (a crowd, gate, etc.); to sweep through (e.g. of news through a city); to run past (someone) from behind; to overtake
to loiter; to putter; to prowl; to wander about; to roam about; to knock around
to set foot into; to enter; to step inside; to cross the threshold
storey; story; stairs; stage (in chronostratigraphy); counter for storeys and floors of a building
one floor (of a building); single floor
left hand; left-hand side; left-hand direction; (on) the left
to turn left; to turn to the left
proficiency level; degree of skill; learning level
in order; in turn; one by one
classroom; lecture room; department (in a university); class; lessons; school (for a particular discipline)
to stand on a podium; to teach; to be a teacher
to get lost; to become lost; to go astray
clanging; empty; deserted
lateness; tardiness; arriving late
notice; attention; observation
needless fear; groundless apprehension; unfounded worry
to rest one's chin in one's hands
lecture hall; lecture room
way; method; means; (technical) specification
(teacher's) platform; podium; dais
unintentionally; inadvertently; calmly; casually; nonchalantly; innocently
excellent answer; clever answer
exposure to wind; severe criticism
(one's) exclusive use; private use; dedicated use; use for a particular purpose; exclusive use (of particular products); using only (e.g. a certain brand)
slowly (but steadily); gradually; bit-by-bit; slowly soaking in; slowly permeating; oozing out
consent; approval; acceptance; agreement; compliance
showing no concern at all; being not at all bothered; devil-may-care attitude
unbearable; intolerable; insufferable
uh-huh; mm-hmm; with a moan; with a groan
rubbish heap; garbage dump
truth; reality; sincerity; honesty; content; substance
capable person; talented person; person with supernatural powers (in fiction); competent person; person with legal capacity