Difference between Diachronic and Synchronic

DIACHRONIC vs SYNCHRONIC: ADJECTIVE

Occurring or changing along with time.
Of or concerned with phenomena, such as linguistic features, as they change through time.
Used of the study of a phenomenon (especially language) as it changes through time

Relating to the study of a language at only one point in its history.
Occurring at a specific point in time.
Of or relating to the study of phenomena, such as linguistic features, or of events of a particular time, without reference to their historical context.
Synchronous.
Occurring or existing at the same time or having the same period or phase
(of taxa) occurring in the same period of geological time
Concerned with phenomena (especially language) at a particular period without considering historical antecedents

Teleological, Dialectical, Textual, Phonemic, Ontological, Temporal, Anthropologic, Phenomenological, Hermeneutical, Epistemic, Contrastive, Hermeneutic, Typological, Synchronic, Historical

At the same time, Coinciding, Coincidental, Concurrent, Coincident, Contemporaneous, Synchronized, Coexisting, Parallel, Simultaneous, Descriptive, Contemporary, Synchronous, Coexistent, Coeval

Teleological, Dialectical, Textual, Phonemic, Ontological, Temporal, Anthropologic, Phenomenological, Hermeneutical, Epistemic, Contrastive, Hermeneutic, Typological, Synchronic, Historical

Coetaneous, Coinciding, Coincidental, Concurrent, Coincident, Contemporaneous, Synchronized, Coexisting, Parallel, Simultaneous, Descriptive, Contemporary, Synchronous, Coexistent, Coeval

Within these profile areas, both synchronic and diachronic approaches are used.
To Geyer, the world was no longer diachronic and linear.
Crossing linguistic boundaries: systemic, synchronic and diachronic variation in English.
Even the diachronic concerns of traditional critics can be exaggerated.
Zero pronouns and clause chaining: Toward a diachronic understanding.
PA adverbials clearly are an issue for diachronic grammar.
Synchronous and diachronic emergence are processes of information production.
Deponency as reanalysis: A diachronic account of voice mismatches.
On the Diachronic Stability of Irregularity in Inflectional Morphology.
Biblical Hebrew, is a diachronic shift to SVO.

First, is it necessary that the perceptualaccount of assimilation have some synchronic counterpart?
Stephen Evans, The English language in Hong Kong: Diachronic and synchronic perspectives.
An introduction to synchronic linguistic analysis, with structural problems in natural languages.
INTRODUCTION Many studies on medical texts have taken a synchronic perspective.
Student: Two become one flesh, and that is a synchronic assessment.
Within these profile areas, both synchronic and diachronic approaches are used.
A general introduction to the synchronic and diachronic descriptions of Chinese.
Crossing linguistic boundaries: systemic, synchronic and diachronic variation in English.
Synchronic studies are, however, not concerned with historical change.
On the synchronic status of palatalization in polish.