What does the word “mishkav” mean in Biblical Hebrew

I do NOT mean "bed". But rather how it is being used in some specific verses: Num. 31:17, 18, & 35; Jdgs.12:11 & 12; Ezk 23:17) What does the word "mishkav" as mentioned ONLY in Num. 31:17,18, & 35; Jdgs.21:…