The term 'MAKE SILENT' can be solved by two four-letter words, 'HUSH' and 'MUTE'. HUSH is an English verb meaning to make quiet or silent. It is often used in the phrase 'HUSH up', which means to keep something secret. MUTE is also an English verb meaning to make or become silent. It is derived from the Latin word 'mutus', which means silent. Both of these words can be used to describe the action of making something or someone silent.