"external" in the noun sense
1. external
outward features
"he enjoyed the solemn externals of religion"
"external" in the adjective sense
1. external
happening or arising or located outside or beyond some limits or especially surface
"the external auditory canal"
"external pressures"
2. external, extraneous, outside
coming from the outside
"extraneous light in the camera spoiled the photograph"
"relying upon an extraneous income"
"disdaining outside pressure groups"
3. external, international, outside
from or between other countries
"external commerce"
"international trade"
"developing nations need outside help"
4. external
purely outward or superficial
"external composure"
"an external concern for reputation"- A.R.Gurney,Jr.
Source: WordNet® (An amazing lexical database of English)
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