direction of travel; direction of movement
ongoing; in progress; afoot
facilitator; programme director; steering committee (chair)
progressive form; in progress; ongoing; underway
progressive (worsening disease or condition)
program director; programme director; facilitator; steering committee (chair)
progressive paralysis (due to neurosyphilis); general paresis
traveling wave (travelling)
royal road progression; koakuma chord progression
March of the Volunteers (national anthem of China)