alter ego
n.

1. Another side of oneself; a second self.
2. An intimate friend or a constant companion.

[Latin : alter, other + ego, I, self.]

lib·er·al (lĭb’ər-əl, lĭb’rəl) pronunciation
adj.

I.
1. Not limited to or by established, traditional, orthodox, or authoritarian attitudes, views, or dogmas; free from bigotry.
2. Favoring proposals for reform, open to new ideas for progress, and tolerant of the ideas and behavior of others; broad-minded.
3. Of, relating to, or characteristic of liberalism.
4. Liberal Of, designating, or characteristic of a political party founded on or associated with principles of social and political liberalism, especially in Great Britain, Canada, and the United States.
II.
1. Tending to give freely; generous: a liberal benefactor.
2. Generous in amount; ample: a liberal serving of potatoes.
3. Not strict or literal; loose or approximate: a liberal translation.
4. Of, relating to, or based on the traditional arts and sciences of a college or university curriculum: a liberal education.

1. Archaic. Permissible or appropriate for a person of free birth; befitting a lady or gentleman.
2. Obsolete. Morally unrestrained; licentious.

n.

1. A person with liberal ideas or opinions.
2. Liberal A member of a Liberal political party.

[Middle English, generous, from Old French, from Latin līberālis, from līber, free.]

con·trol (kən-trōl’) pronunciation
tr.v., -trolled, -trol·ling, -trols.

1. To exercise authoritative or dominating influence over; direct. See synonyms at conduct.
2. To adjust to a requirement; regulate: controlled trading on the stock market; controls the flow of water.
3. To hold in restraint; check: struggled to control my temper.
4. To reduce or prevent the spread of: control insects; controlled the fire by dousing it with water.
5.
1. To verify or regulate (a scientific experiment) by conducting a parallel experiment or by comparing with another standard.
2. To verify (an account, for example) by using a duplicate register for comparison.

n.

1. Authority or ability to manage or direct: lost control of the skidding car; the leaders in control of the country.
2.
1. One that controls; a controlling agent, device, or organization.
2. An instrument or set of instruments used to operate, regulate, or guide a machine or vehicle. Often used in the plural.
3. A restraining device, measure, or limit; a curb: a control on prices; price controls.
4.
1. A standard of comparison for checking or verifying the results of an experiment.
2. An individual or group used as a standard of comparison in a control experiment.
5. An intelligence agent who supervises or instructs another agent.
6. A spirit presumed to speak or act through a medium.