let me see; well; errr ...; uhh ...
restriction; restraint; limitation; limit
opposition; rivalry; competition; antagonism
index; index number; indicator; exponent
detection; sense (e.g. sensor)
threshold (amount, dose, etc.)
certain; sure; no doubt; reliable; dependable
breaking through; breakthrough; surmounting (a difficulty); overcoming; exceeding; passing
that is to say; that is; in short; in brief; clogging; obstruction; shrinkage
strict; close; precise; scrupulous
level; standard; level (amount or quantity); level (plane); level (instrument); spirit level
logic device; logic circuit
circuit; cycle (e.g. Krebs cycle); cycle; loop
by means of; due to; because of; according to
artificial; man-made; human work; human skill; artificiality
it seems that ...; it appears that ...; is like ...; is similar to ...
not going (well); not proceeding (as one wishes); bad; not good; hopeless; beyond hope
immediately; at once; soon; before long; easily; readily
to face; to go towards; to head towards
is it?; isn't it?; be; is
recently; lately; these days
insertion; interposition; interpolation; infix
outside (e.g. of a building); exterior; outside (of a group, company, etc.); outside world
(sense of) sight; eyesight; vision
territory; domain; field; area; domain; region
pseudo; quasi; false; suspected (case, e.g. of disease)
-ian (e.g. Italian); -ite (e.g. Tokyoite); -er (e.g. performer, etc.); person working with ...; man; person
to prepare; to provide; to set up; to establish; to organize
easy; simple; there's no way that ...
purpose; goal; aim; objective; intention; motive
or rather (say); or better (say); or perhaps I should say; or, how should I put it; I mean
obvious; clear; plain; evident; apparent; explicit
code; program; code; regulation; code; symbol set; cord
habit (usu. a bad one); tendency; peculiarity; idiosyncrasy; crease; wrinkle