sign; mark; symbol; sign (e.g. positive, negative)
Morse code (esp. signalling)
every ...; every other ...; at intervals of ...; with ... in between; ... apart
signal; signalling; signaling; traffic light; traffic signal
delivery; transfer; hand-over
radio wave; reception; signal; saying strange things
work, items, etc. carried over from earlier; hangover; what you ate the day before (and is still being digested)
absolute basics; very rudiments
to be hanged; to be struck dead; to eat one's hat
harakiri; seppuku; ritual suicide by disembowelment
narrow-minded; intolerant; petty
improvement of relations; rapprochement
to be deeply impressed; to take to heart; to engrave on one's heart; to bear in mind; (lit.) to engrave on one's liver
processing technology; processing technique
one's own house; own; personal; autologous
to come (home) to one; to click; to ring a bell; to appeal to one; to speak to one; to impress one
electric line; electric cable; power cable; telephone line; telegraph wire
thrust; driving force; propulsion
agricultural chemical; agrochemical; agrichemical
Haber-Bosch process (for producing ammonia)
high voltage; high pressure
hedge; fence; border; limit
to check through; to thoroughly investigate
paper plane; paper airplane; paper aeroplane
one Nth part (e.g. one fifth, one tenth); one out of N