Noun

(countable) Any of various tropical American evergreen trees, of the genus Swietenia , having a valuable hard red-brown wood.

(uncountable) The wood of these trees, mostly used to make furniture.

*{{quote-book, year=1963, author=(Margery Allingham)

, title=(The China Governess) , chapter=Foreword citation , passage=A very neat old woman, still in her good outdoor coat and best beehive hat, was sitting at a polished mahogany table on whose surface there were several scored scratches so deep that a triangular piece of the veneer had come cleanly away, […].}}

A reddish-brown color, like that of mahogany wood.

A table made from mahogany wood.

* 1842 , Dublin University Magazine: A Literary and Political Journal

Poets eat and drink without stint — and seldom at their own cost — for what man of mark or likelihood in the moneyed world is there, who is not eager to get their legs under his mahogany ?

Noun

(en noun)

A non-existent or empty value or set of values.

Zero]] quantity of [[expression, expressions; nothing.

(Francis Bacon)

Something that has no force or meaning.

(computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.

(computing) the attribute of an entity that has no valid value.

Since no date of birth was entered for the patient, his age is null .

One of the beads in nulled work.

(statistics) null hypothesis