They sure used the word a lot.
Genesis 49:18 - I have waited for thy salvation, O LORD.
Exodus 14:13 - And Moses said unto the people, Fear ye not, stand still, and see the salvation of the LORD
Exodus 15:2 - The LORD is my strength and song, and he is become my salvation
Deut 32:15 then he forsook God which made him, and lightly esteemed the Rock of his salvation
1 Samuel 2:1 - And Hannah prayed, and said, My heart rejoiceth in the LORD, mine horn is exalted in the LORD: my mouth is enlarged over mine enemies; because I rejoice in thy salvation.
In fact I got about 12 pages of quotes using the word salvation from just the Old Testament alone.
Similarly, the Biblical words translated as "salvation" in English do not refer to "salvation" as understood in the Christianity-- as Judaism has no belief in original sin, and no belief in an eternal hellfire to be "saved from." Depending on the context, the quotes you use mean different things-- for example, Exodus 14:13 refers to Israel's literal and physical salvation from the yoke of Egyptian slavery (as many "salvation" quotes in the Bible do). Likewise, Hannah's "salvation" was from the stigma of being a barren woman, thanks to the miraculous birth of Samuel.
As I said before, I have no interest or desire to debate theology with you-- nor will I get dragged into a posting match where you trot out tired arguments I've heard a thousand times, and I have to spend hours painstakingly refuting them. I was merely trying to demonstrate the theological similarities between Judaism and Islam-- which are quite prevelant in the underlying faiths, despite the Wahabbi corruption of Islam that has taken hold in recent years.