What it means

1. verb hold back
   “She conceals her anger well”
2. verb refrain from doing
   “she forbore a snicker”
3. verb wait before acting
   “the scientists held off announcing their results until they repeated the experiment”
4. verb prevent the action or expression of
   “hold back your anger”
5. verb secure and keep for possible future use or application
   “The landlord retained the security deposit”
6. verb hold back, as of a danger or an enemy
   “Arrest the downward trend”