Nashim (Hebrew: נשים) ("Women" or "Wives") is the third order of the Mishnah (also of the Tosefta and Talmud), containing the laws related to women and family life. Of the six orders of the Mishna, it is the second shortest.
Yebamoth: (יבמות, "Levirate marriage"); (or Yebamot or Yevamot), referring to the mandated marriage of a widow to her brother-in-law, deals with the Jewish law of levirate marriage (Deut. 25:5-10) and other topics, such as the status of minors. It consists of 16 chapters.
Nedarim: (נדרים, "Vows"); deals with various types of vows, often known as nedarim, and their legal consequences. It consists of 11 chapters.
Nazir: (נזיר, "One who abstains"); deals with the details of the Nazirite vow and being a Nazirite (Num 6). It consists of 9 chapters.
Sotah: (סוטה, "Wayward wife"); deals with the ritual of the Sotah - the woman suspected of adultery (Num 5) as well as other rituals involving a spoken formula (such as breaking the heifer's neck, the King's septa-annual public Torah reading, the Blessings and Curses of Mount Gerizim and Mount Ebal, etc...). It consists of 9 chapters.
Gittin: (גיטין, "Documents"); deals with the concepts of divorces and other documents. It consists of 9 chapters.
Kiddushin: (קידושין, "Betrothal"); deals with the initial stage of marriage - betrothal, as well as the laws of Jewish lineages. It consists of 4 chapters.