divide into four pieces; one fourth
one; 1; best; first; foremost; beginning; start
closing; closure; shutdown; lockout
to be too numerous; to be too much
to come to nothing; to be in vain; to lead nowhere
secret; clandestine; covert; spy (for a daimyo, shogun, etc.); secret agent
nature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); gender; -ty
to think (about, of); to think over; to consider; to bear in mind; to think (that); to believe; to intend (to do)
sky; the skies; high-altitude sky; upper air
standing by; awaiting an opportunity; being on alert
follow; following (on social media, esp. Twitter); follow-up; following up; backing-up; covering for; follow-up shot
being in charge (of an area of responsibility); being responsible (for a work role, etc.)
to receive; to take; to get somebody to do something; to have in one's pocket (a fight, match); to contract (a disease); to catch
which way; which direction; which one (esp. of two alternatives); who
to leak out; to escape; to find expression; to give vent; to leak out; to be divulged
contacting; (making) contact; connection (with a train, bus, etc.); joining (a railway line, etc.); connection (between matters, incidents, etc.); relation
role; assignment; position (of responsibility); post; part (in a play, film, etc.); role
support; backing; aid; assistance
to branch; to fork; to separate; to split; to disperse; to scatter
usual; ordinary; normal; regular; general; common
correspondence; communication; transmission; news; signal; telecommunications
transmission method; communication system
gravitational wave; gravity wave
if; in case; as for; on the topic of; if that's the case; if so
barely; narrowly; only just; with difficulty
difficult to ...; hard to ...
relay; hook-up; relay broadcasting
cooperation; coordination; link
action; conduct; behaviour; behavior; mobilization; mobilisation
going side-by-side; going abreast; running concurrently; occurring at the same time; keeping pace with
towards; against; regarding; in contrast with
to perform; to do; to conduct oneself; to carry out
goods; materials; commodities; resources; supplies
transfer; redirection; transmission; forwarding (telephone call, e-mail, etc.)
digression; many divergences
to cross over; to go across; to extend; to cover; to range