Choose a letter:

a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z

jet stream	A fast-moving current of air that flows at high elevations.
jetty	A manmade wall that protects the entrance to a harbor.
joint set	A group of systematic joints.
joints	Naturally formed cracks in rocks.
Jovian	A term used to describe the outer gassy, Jupiter-like planets (gas-giant planets).