an abstract place usually conceived as having depth | the skilled practice of a practical occupation |
a subpopulation divided into a stratified sampling | a vehicle designed for navigation in or on water or air or through outer space |
people having the same social, economic, or educational status | shrewdness as demonstrated by being skilled in deception |
one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock) | skill in an occupation or trade |
| people who perform a particular kind of skilled work |