|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
|a chattering or flighty, light-headed person.|
|1.||lacking the power to speak, either because of defects in the vocal organs or because of hereditary deafness|
|2.||lacking the power of human speech: dumb animals|
|3.||temporarily lacking or bereft of the power to speak: struck dumb|
|4.||refraining from speech; uncommunicative|
|5.||producing no sound; silent: a dumb piano|
|6.||made, done, or performed without speech|
|a. slow to understand; dim-witted|
|b. See also dumb down foolish; stupid|
|8.||(of a projectile or bomb) not guided to its target|
|[Old English; related to Old Norse dumbr, Gothic dumbs, Old High German tump]|
dumbed downadj. Simplified, with a strong connotation of _over_simplified. Often, a marketroid will insist that the interfaces and documentation of software be dumbed down after the designer has burned untold gallons of midnight oil making it smart. This creates friction. See user-friendly.
from natural infirmity (Ex. 4:11); not knowing what to say (Prov. 31:8); unwillingness to speak (Ps. 39:9; Lev. 10:3). Christ repeatedly restored the dumb (Matt. 9:32, 33; Luke 11:14; Matt. 12:22) to the use of speech.