According to Americans, is the term 'Single' attached to financial obligations? Single means you don't have someone who you are either falling in love or in love with. It means that if it tickles your fancy, you will not feel any guilt in having sex with whomever crosses your path. If you don't feel like going home tonight, it's not a problem - nobody to call - nobody to answer to.
Single means you are not in a relationship - whether you are in America, Canada, or Timbuktu.
Here's the meaning for all the engineers without a degree:
Pronunciation: 'si[ng]-g&l
Function: adjective
Etymology: Middle English, from Middle French, from Latin singulus one only; akin to Latin sem- one -- more at SAME
Date: 14th century
1 a : not married b : of or relating to celibacy
2 : unaccompanied by others : LONE, SOLE <the single survivor of the disaster>
3 a (1) : consisting of or having only one part, feature, or portion <single consonants> (2) : consisting of one as opposed to or in contrast with many : UNIFORM <a single standard for men and women> (3) : consisting of only one in number <holds to a single ideal> b : having but one whorl of petals or ray flowers <a single rose>
4 a : consisting of a separate unique whole : INDIVIDUAL <every single citizen> b : of, relating to, or involving only one person
5 a : FRANK, HONEST <a single devotion> b : exclusively attentive <an eye single to the truth>
6 : UNBROKEN, UNDIVIDED
7 : having no equal or like : SINGULAR
8 : designed for the use of one person only <a single room> <single bed>