this·tle·down 
(thĭsəl-doun′)
(thĭsəl-doun′)n.
The silky down attached to the seedlike fruit of a thistle.
- out of the loop
- out of the question
- out of the running
- out-of-the-way
- out of the way
- out of the woods
- out of the woodwork
- out of this world
- out-of-touch
- out of touch
- out-of-town
- out-of-towner
- out of turn
- out of wedlock
- out of whack
- out of whole cloth
- out of work
- (out) on a limb
- out on a limb
- outpace
- outpatient
- outperform
- outperformance
- outplace
- outplacement