The person or organization to which something, such as a letter or message, is addressed or sent, for whom the item is intended.

Made of adamant, or having the qualities of adamant; incapable of being broken, dissolved, or penetrated. / Like the diamond in hardness or luster.

An old saying which has obtained credit by long use. / An old saying which has been overused or considered a cliché; a trite maxim.

(Abrahamic religions) The first man and the progenitor of the human race. / A male given name from Hebrew. / (figuratively) Original sin or human frailty.

(mathematics) Addendum, any one of two or more numbers or other terms that are to be added together. / (organic chemistry) A moiety added to another molecule.

To furnish with an addendum. / (organic chemistry) To furnish with an addend.

Well skilled; completely versed; thoroughly proficient

One fully skilled or well versed in anything; a proficient

(provincial, Northern England) To earn, earn by labor; earn money or one's living. / (provincial, Northern England) To thrive or grow; to ripen.

Having lost the power of development, and become rotten; putrid. / (by extension) Unfruitful or confused; muddled.