Collocations for external - adj.

External is used with these nouns:
affair, agency, aggression, angle, appearance, assessment, assistance, auditor, contractor, course, customer, debt, demand, diameter, door, drive, ear, enemy, environment, exam, examination, factor, finance, force, funding, influence, interference, intervention, microphone, modem, observer, parasite, pressure, reality, sign, skeleton, source, stimulus, supplier, surface, tariff, temperature, threat, trade, training, trappings, use, wall, world