flag down (verb) hail: call to, yell for
Sinonime: apprehension,
arrest, arrestation, bust, custody, delay, detainment,
hindrance, holding back, holding pen, immurement,
impediment, incarceration, internment, keeping in, nab,
pen*, pickup,
pinch*,
quarantine,
restraint,
retention, time up the river, withholding
Antonime: freedom,
liberation,
release