1) Jogging jersey 2) Top former record time 3) Undergarment 4) Undershirt 5) Undershirt or jersey 6) Vest 1) Undershirt 2) Vest 
a one-syllable foot.
• (n.) An unlined or undyed waistcoat; a single garment; -- opposed to doublet.
Uniform used for wrestling that is designed to fit snug in order to not restrict movement.
(from the article `carbene`) ...with unpaired electrons can exist in all three forms and are said to be in a triplet state. By contrast, substances with all electrons paired show ... ...MO they must have different values (i.e., they are antiparallel, or spin paired). This results in a cancellation of their magnetic moments, ... ...s...
A tight, sleeveless, one-piece outfit worn by wrestlers during their matches.
The one-piece uniform worn by wrestlers. One wrestler wears red, the other blue.
A one-syllable foot.
Sin'glet noun An unlined or undyed waistcoat; a single garment; -- opposed to doublet . [ Prov. Eng.] 
A light weight tank top worn by runners
A lens that is made of only one piece of glass. It is a single-element lens
A singlet is a man's short-sleeved vest with a small, button placket fastening at the neck. Singlets were later adopted by women both for underwear and outerwear.
[n] - a collarless men`s undergarment for the upper part of the body
vest noun a collarless men`s undergarment for the upper part of the body