通約

common measure

to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

to weigh in a balance or on a scale

to make an appointment / to invite / approximately / pact / treaty / to economize / to restrict / to reduce (a fraction) / concise