humming a tune;  humming unconcernedly
 to be mixed together;  to be blended;  to intermingle;  to commingle
 grizzled;  (hair) streaked with grey (gray)
 (doing something) in tears
 (something) mixed with snow
 mixed writing (kanji and kana)
 (something) mixed with rain (snow, wind, etc.)
 mixed writing (kanji and kana)
 mixture of correct and broken speech