The more mystical word for to hide in Hebrew is להסתתר . This is a התפעל verb from the root ס.ת.ר meaning concealment.
But the more common word is להתחבא , also a התפעל verb, but of the root ח.ב.ה .
For example:
היא אוהבת להתחבא מתחת לשולחן כשמגיעים אורחים.
She likes to hide under the table when guests come.
