'Widow's' in the Bible

So she removed her widow’s clothes and covered herself with a veil, and wrapped herself up [in disguise], and sat in the gateway of Enaim, which is on the road to Timnah; for she saw that Shelah had grown up, and she had not been given to him as a wife [as Judah had promised].

“You shall not pervert the justice due a stranger or an orphan, nor seize (impound) a widow’s garment as security [for a loan].

“They drive away the donkeys of the orphans;They take the widow’s ox for a pledge.

“The blessing of him who was about to perish came upon me,And I made the widow’s heart sing for joy.

(But from my youth the orphan grew up with me as with a father,And from my mother’s womb I have been the widow’s guide),