Japanese

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For pronunciation and definitions of がんきょう – see the following entries.
眼鏡
[noun] (military, possibly archaic) glasses, eyeglasses
頑強
[adjective] strong, tough, hardy
[adjective] tenacious, stubborn, obstinate, adamant
(This term, がんきょう (gankyō), is the hiragana spelling of the above terms.)