By oneself, solitary.
Lacking peers who share one's beliefs, experiences, practices, etc.
Not requiring anything further; merely.
By oneself; apart from, or exclusive of, others; solo.
Without outside help.
Used to emphasize the size or extent of something by selecting a subset.
Not permitting anything further; exclusively.
Intended for a single person as opposed to more than one person.
Not divisible without losing its identity.
Relating to a single person or thing as opposed to more than one.
An object, be it a thing or an agent, as contrasted to a class.
A person considered alone, rather than as belonging to a group of people.
An element belonging to a population.
A single physical human being as a legal subject, as opposed to a legal person such as a corporation.