de·fine 
(dĭ-fīn)
(dĭ-fīn)v. de·fined, de·fin·ing, de·fines
v.tr.
1.
a. To state the precise meaning of (a word or sense of a word, for example).
b. To describe the nature or basic qualities of; explain: define the properties of a new drug; a study that defines people according to their median incomes.
2.
a. To make clear the outline or form of; delineate: gentle hills that were defined against the sky.
b. To specify distinctly: define the weapons to be used in limited warfare.
3. To give form or meaning to: "For him, a life is defined by action" (Jay Parini).
v.intr.
To make or write a definition.
[Middle English definen, diffinen, from Old French definir, diffiner, from Latin dēfīnīre, to limit, determine : dē-, intensive pref.; see DE- + fīnis, boundary, limit.]
de·fin′a·bili·ty n.
de·fina·ble adj.
de·fina·bly adv.
de·finement n.
de·finer n.
- Seventh-day Adventist
- seventh heaven
- seventh-inning stretch
- seventieth
- seventy
- seventy-eight
- seven-up
- Seven Wonders of the World
- sever
- severability
- severable
- several
- severalfold
- severally
- severalty
- severance
- severance pay
- severance tax
- severe
- severe acute respiratory syndrome
- severe combined immunodeficiency
- severely
- severeness
- severity
- Severnaya Zemlya