| a conveyance that transports people or objects | protective covering consisting of a broad plank along a gunwale to keep water from splashing over the side |
| a medium for the expression or achievement of something | protective covering consisting of a panel to protect people from the splashing water or mud etc. |
| any inanimate object (as a towel or money or clothing or dishes or books or toys etc.) that can transmit infectious agents from one person to another | |
| any substance that facilitates the use of a drug or pigment or other material that is mixed with it | |