matter; affair; counter for (received) emails, text messages, voicemail messages, etc.; counter for accounts (on a website, email service, etc.)
contacting; getting in touch; communication; call; message
original; unique; distinctive; independent; one's own; personal
heart; mind; bottom of one's heart; core (of one's character); centre; center; heart (organ)
you have only to; all you have to (do); all that's required; as long as; if only
how; in what way; why; for what reason; cannot possibly; no way
wave motion; undulation; surge; wave
extinction; extinguishment; disappearance; annihilation
to sever; to cut off; to suppress; to eradicate; to abstain (from); to give up
in that case; (might not be what was expected or hoped for but) if that's the case
response (felt in the hands); resistance; reaction; response; effect
brain waves; electroencephalogram; EEG
when it comes to ...; if one were to speak of ...; by ... you mean ...; when you say ... you mean that ...; whenever ...; if it's ... then (without fail)
to lock up; to shut up; to imprison
perhaps; likely; probably; I dare say
to be conceivable that; to be thinkable that
to accept; to receive (an application); to (be able to) take (food, medicine, etc.); to bear; to be affected by; to take damage from
barrier; protective wall; obstacle; hindrance; imaginary shield that gives one invincibility or immunity
different (quality, nature); heterogeneous
mind; spirit; attitude; mentality; spirit (of a matter); essence
pattern; behavioural pattern; behavioral pattern; predictability
operation; management; handling; manipulating (to one's benefit); manipulation; influencing
side; edge; beside; while (doing); in addition to; at the same time
regulation; adjustment; control
equipment; device; installation; stage setting
displeasure; discomfort; unpleasantness; indisposition; ailment
to have a go; to try and do (something); to take a chance with something
probe; inquiry; enquiry; investigation
real intention; motive; true opinion; what one really thinks
to let leak; to let out (e.g. light); to let out (a secret); to leak (information); to give utterance to (e.g. one's dissatisfaction); to vent; to wet one's pants
foot; paw; leg; gait; pace; bottom structural component (i.e. radical) of a kanji; means of transportation
to be sorry; to beg pardon; to be grateful; to be amazed; to be filled with awe; to be disconcerted
progress; pace; carriage; step; stage
wholeheartedly (approve, agree, etc.); unconditionally; completely
approval; agreement; support; favour; favor
to hesitate to say; to find it difficult to say
all kinds of things; various things; large number of people
consultation; discussion; discussing; asking (somebody) for advice
not exceeding; and downward; below (e.g. standard); under (e.g. a level); the below-mentioned; the following