Thayer's Greek Definitions (TGD) by US Biblical scholar Joseph Henry Thayer (1828 — 1901), is one of the best Greek lexicons available for students of New Testament Greek. This invaluable resource, keyed off of Strong's Numbers, provides dictionary definitions for each word and relates each word to its New Testament usage and categorises its nuances of meaning.

This electronic edition includes:

• Independent Dictionary with full text Search as well as Strong's Number lookup
• Linked Cross-References
• TGD definitions added to New Testament Strong's definitions in installed Strong's-Based Bibles (Example: KJV with Strong's Concordance, NASB with Exhaustive Concordance, HCSB with Strong's Concordance and Nave's Topical Bible).

For Old Testament study see Brown-Driver-Briggs Hebrew Definitions.