continued -- this is something we should not be ignorant of...
((source: https://hermeneutics.meta.stackexchange.com/questions/923/strongs-is-a-concordance-not-a-lexicon))
What if the Strong's Concordance is linked to a lexicon?
Several free online tools have linked Strong's Concordance entries to lexicon entries. Unfortunately, most of them use either Thayer's Greek-English Lexicon or Smith's Bible Dictionary for definitions, both of which were published prior to 1895. As I've cautioned about elsewhere, these resources are considered to be obsolete by scholars (and contain much inaccurate information).
How to properly use the Strong's Concordance
The Strong's Concordance can be used effectively as an index of the occurrences of a lemma in the original languages of the Biblical texts (at least in those manuscripts used by the King James Bible, which is a limitation of this tool, although some later revisions of it have addressed this to some extent).
Strong's Concordance is a great tool for identifying other occurrences of a lemma by using it's number (as this does not require that you can actually read the alphabet of the original language). This makes an original languages concordance accessible to those who cannot read those languages.
The gloss definition given by the concordance (or even a definition given by an outdated lexicon) can be helpful here in giving a general understanding of the lemma's meaning, but this should not be used as the sole source to justify the meaning or definition of the word in a specific textual context. However, it can help you see how the word has been translated in its other occurrences, which can give you a broader understanding of its semantic range and how it is generally interpreted in similar contexts (using multiple English Bible translations will help catch differences and nuances of meaning, which can lead to good questions about the meaning of lemmata in specific contexts here on BH.SE, where someone versed in the original language can assist you in better understanding the passage). Pay close attention to differences in grammar, author, audience, genre, and historical setting as these can all influence the meaning of a lemma in a specific context.
Concluding warnings and encouragement
Strong's Concordance is an index of occurrences of a lemma in the original language of the Biblical text, it is not a lexicon/dictionary (and thus is not a reliable source for the meaning of a lexeme in a specific context). However, this tool is a great resource for those who wish to better understand how a lemma has been understood by English Bible translators in its other occurrences, and Biblical study conducted using Strong's Concordance can provide the impetus for many good questions about the Biblical texts here where someone trained in the original language(s) can assist you further with understanding the meaning of a lexeme in a specific text of interest.
1 I took a course on the Bible during my undergraduate program where a classmate argued that the woman in Luke 8:43-44 had a sexually transmitted disease (STD) on the basis of the King James Version translation and corresponding Strong's Concordance gloss. The relevant text in the KJV translation reads, "And a woman having an issue of blood twelve years ... Came behind him, and touched the border of his garment: and immediately her issue of blood stanched." She understood 'issue' to refer to a 'problem in' the woman's blood, rather than as (the correct understanding of the Greek text which is) 'the flowing or coming out' of blood from the woman's body, i.e. hemorrhaging (likely a medical condition related to menstruation).
2 Daniel B. Wallace. The Basics of New Testament Syntax: An Intermediate Greek Grammar. Zondervan, 2000, p. 21.
((source: https://hermeneutics.meta.stackexchange.com/questions/923/strongs-is-a-concordance-not-a-lexicon))
What if the Strong's Concordance is linked to a lexicon?
Several free online tools have linked Strong's Concordance entries to lexicon entries. Unfortunately, most of them use either Thayer's Greek-English Lexicon or Smith's Bible Dictionary for definitions, both of which were published prior to 1895. As I've cautioned about elsewhere, these resources are considered to be obsolete by scholars (and contain much inaccurate information).
"...in 1895, Adolf Deissmann published his Bibelstudien—an innocently titled work that was to revolutionize the study of the NT. In this work (later translated into English under the title Bible Studies) Deissmann showed that the Greek of the NT was not a language invented by the Holy Spirit (Hermann Cremer had called it "Holy Ghost Greek," largely because 10 percent of its vocabulary had no secular parallels). Rather, Deissmann demonstrated that the bulk of NT vocabulary was to be found in the papyri.
The pragmatic effect of Deissmann's work was to render obsolete virtually all lexica and lexical commentaries written before the turn of the century. (Thayer's lexicon, published in 1886, was outdated shortly after it came off the press—yet, ironically, it is still relied on today by many NT students.)"2
Elsewhere I've given a list of scholarly lexicons and a list of Biblical Studies reference works (including lexicons) that are available for free online.The pragmatic effect of Deissmann's work was to render obsolete virtually all lexica and lexical commentaries written before the turn of the century. (Thayer's lexicon, published in 1886, was outdated shortly after it came off the press—yet, ironically, it is still relied on today by many NT students.)"2
How to properly use the Strong's Concordance
The Strong's Concordance can be used effectively as an index of the occurrences of a lemma in the original languages of the Biblical texts (at least in those manuscripts used by the King James Bible, which is a limitation of this tool, although some later revisions of it have addressed this to some extent).
Strong's Concordance is a great tool for identifying other occurrences of a lemma by using it's number (as this does not require that you can actually read the alphabet of the original language). This makes an original languages concordance accessible to those who cannot read those languages.
The gloss definition given by the concordance (or even a definition given by an outdated lexicon) can be helpful here in giving a general understanding of the lemma's meaning, but this should not be used as the sole source to justify the meaning or definition of the word in a specific textual context. However, it can help you see how the word has been translated in its other occurrences, which can give you a broader understanding of its semantic range and how it is generally interpreted in similar contexts (using multiple English Bible translations will help catch differences and nuances of meaning, which can lead to good questions about the meaning of lemmata in specific contexts here on BH.SE, where someone versed in the original language can assist you in better understanding the passage). Pay close attention to differences in grammar, author, audience, genre, and historical setting as these can all influence the meaning of a lemma in a specific context.
Concluding warnings and encouragement
Strong's Concordance is an index of occurrences of a lemma in the original language of the Biblical text, it is not a lexicon/dictionary (and thus is not a reliable source for the meaning of a lexeme in a specific context). However, this tool is a great resource for those who wish to better understand how a lemma has been understood by English Bible translators in its other occurrences, and Biblical study conducted using Strong's Concordance can provide the impetus for many good questions about the Biblical texts here where someone trained in the original language(s) can assist you further with understanding the meaning of a lexeme in a specific text of interest.
1 I took a course on the Bible during my undergraduate program where a classmate argued that the woman in Luke 8:43-44 had a sexually transmitted disease (STD) on the basis of the King James Version translation and corresponding Strong's Concordance gloss. The relevant text in the KJV translation reads, "And a woman having an issue of blood twelve years ... Came behind him, and touched the border of his garment: and immediately her issue of blood stanched." She understood 'issue' to refer to a 'problem in' the woman's blood, rather than as (the correct understanding of the Greek text which is) 'the flowing or coming out' of blood from the woman's body, i.e. hemorrhaging (likely a medical condition related to menstruation).
2 Daniel B. Wallace. The Basics of New Testament Syntax: An Intermediate Greek Grammar. Zondervan, 2000, p. 21.