尴 is a bound character — you only meet it inside
尴尬 (awkward / embarrassed). The compound is one of the highest-frequency emotion words in modern Chinese, used for everything from a botched introduction to a diplomatic standoff. Common collocations:
尴尬的局面 (awkward situation),
感到尴尬 (feel embarrassed),
化解尴尬 (defuse the awkwardness).