Disassemble vs. Dissemble

Disassemble means to take apart.

You can break the word into the prefix dis– and the root assemble.

Example: The children disassembled the castle they built with snap-on blocks..

Dissemble means to alter or change the appearance of in order to deceive or conceal; to misrepresent or pretend.

Examples:  Joan smiled, dissembling her true feelings of disappointment.