May a woman perform mitzvot voluntarily? The test case is Smicha or semikhah (Hebrew: סמיכה, "leaning [of the hands]"), also smichut (סמיכות, "ordination"), smicha lerabbanut (סמיכה לרבנות, "rabbinical ordination"), or smicha lehazzanut (סמיכה לחזנות, "cantorial ordination"), is derived from a Hebrew word which means to "rely on" or "to be authorized".