Definition of 目は口ほどに物を言う (めはくちほどにものをいう)
めくちものい
                        目は口ほどに物を言う
めはくちほどにものをいう
mehakuchihodonimonowoiu
expression
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one can say more with a look than with ten thousand words, the eyes cannot belie one's true thoughts, the eyes are the windows to the soul, eyes are as eloquent as the tongue(proverb)
See also:物を言う
Other readings:
                目は口程に物を言う【めはくちほどにものをいう】
                Related Kanji
| 目 | eye, class, look, insight, experience, care, favor | 
| 口 | mouth | 
| 物 | thing, object, matter | 
| 言 | say, word | 
| 程 | extent, degree, law, formula, distance, limits, amount |