Long

biographical name

Synonyms of Longnext
Crawford Williamson 1815–1878 American surgeon

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Cite this Entry

“Long.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Long. Accessed 9 Jun. 2026.

Kids Definition

long

1 of 3 adjective
longer ˈlȯŋ-gər How to pronounce long (audio) ; longest ˈlȯŋ-gəst How to pronounce long (audio)
1
: of great extent from end to end : not short
2
a
: having a specified length
a meter long
b
: forming the chief linear dimension
the long side of the table
3
: lasting for a considerable or specified time
a long friendship
two hours long
4
: overly long or lasting too long
a long look
a long explanation
5
: containing many or a specified number of units
a long series of wins
6
: being a syllable or speech sound of relatively great duration
7
: extending far into the future
8
: strong in or well supplied with something
long on golf
long on wisdom

long

2 of 3 adverb
1
: for or during a long time
long a popular hangout
2
: for the length of a specified period
all summer long
3
: at a distant point of time
long before we arrived

long

3 of 3 verb
longed; longing
ˈlȯŋ-iŋ
: to feel a strong desire or wish
longing to return home
Etymology

Old English long, lang "extending a great distance"

Old English langian "to feel a strong desire for something"

Legal Definition

long

adjective
: owning or accumulating securities, goods, or commodities especially in anticipation of a rise in prices
a buyer long on wheat
compare short
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