Noah Webster's Dictionary 1. (a.) Having the power to produce an effect or result; fit for a purpose; as, an effective tool; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment. 2. (n.) That which produces a given effect; a cause. 3. (n.) One who is capable of active service. 4. (n.) Specie or coin, as distinguished from paper currency; -- a term used in many parts of Europe.

Multi-Version Concordance Effective (4 Occurrences) 1 Corinthians 16:9 for a great and effective door has opened to me, and there are many adversaries. (WEB NAS RSV NIV) 2 Corinthians 1:6 But if we are troubled, it is for your comfort and salvation; or if we are comforted, it is for your comfort, which takes effect through your quiet undergoing of the same troubles which we undergo: (See NAS) Philemon 1:6 that the fellowship of your faith may become effective, in the knowledge of every good thing which is in us in Christ Jesus. (WEB NAS) James 5:16 Confess your offenses to one another, and pray for one another, that you may be healed. The insistent prayer of a righteous person is powerfully effective. (WEB NAS NIV)