1. To leave or depart from some location or situation very quickly, quietly, and furtively. I started feeling a bit despondent at the party, so I stole away while no one was looking. The two stole away to share a kiss.

2. To steal someone or something (from someone); to rob someone of someone or something. In this usage, a noun or pronoun is used between "steal" and "away." The two thieves stole the statue away by loading it into a helicopter and making off into the night sky. The gang has been stealing children away for years and brainwashing them as young soldiers.

3. To take someone or something away from someone, especially in a way that seems unfair or malicious. In this usage, a noun or pronoun is used between "steal" and "away." The team had victory within their grasp, but with a last-minute field goal, the reigning champions stole it away from them. I don't know why you're so convinced that I'm trying to steal your boyfriend away, but it simply is not true!