- 1launder something (formal) to wash, dry, and iron clothes, etc. freshly laundered sheets
- 2 launder something to move money that has been obtained illegally into foreign bank accounts or legal businesses so that it is difficult for people to know where the money came from Most of the drug money was laundered through Swiss bank accounts.
NAmE//ˈlɔndər//Verb Forms present simple I / you / we / they launder
he / she / it launders
past simple laundered
-ing form laundering