If you are talking about a piece of narrow land that sticks out into a body of water, then it is called a peninsula.
An isthmus is a narrow strip of land that connects two larger landforms.
Isthmus
It is a reef.
The plant that looks like a sword is called a sword fern (Nephrolepis exaltata). It gets its name from its long, narrow, and pointed fronds that resemble swords. Sword ferns are popular houseplants due to their easy care and attractive appearance.
The long narrow bone in the lower part of your leg is called the fibula.
rille
A rubber band, obviously
A long or flat narrow muscle :)
Generally a long narrow rowing boat (varying from 1 to 8 persons) is refered to as a "rowing shell" or simply "a shell"
A Baguette is the French name for a long narrow loaf of bread.
Rowing Shell.
mexico
weejuns
The name of the footwear of Romanians in the past (especially in villages) is opincă (pl. opinci).
getta for wooden thongs or tabi for slippers best men's footwear at dukanee.com
needle