"wan" in the noun sense
1. wide area network, WAN
a computer network that spans a wider area than does a local area network
"wan" in the verb sense
become pale and sickly
"wan" in the adjective sense
1. pale, pallid, wan, sick
of light) lacking in intensity or brightness dim or feeble
"the pale light of a half moon"
"a pale sun"
"the late afternoon light coming through the el tracks fell in pale oblongs on the street"
"a pallid sky"
"the pale (or wan) stars"
"the wan light of dawn"
2. pale, pallid, wan
abnormally deficient in color as suggesting physical or emotional distress
"the pallid face of the invalid"
"her wan face suddenly flushed"
lacking vitality as from weariness or illness or unhappiness
"a wan smile"
Source: WordNet® (An amazing lexical database of English)
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