What is meant by mount in Linux?

Mounting a filesystem simply means making the particular filesystem accessible at a certain point in the Linux directory tree. When mounting a filesystem it does not matter if the filesystem is a hard disk partition, CD-ROM, floppy, or USB storage device. You can mount a file system with mount command.

What is the use of mount in Linux?

The mount command attaches the filesystem of an external device to the filesystem of a system. It instructs the operating system that filesystem is ready to use and associate it with a particular point in the system’s hierarchy. Mounting will make files, directories and devices available to the users.