synchronous

If you are a werewolf, your animal transformation is synchronous with the lunar cycle. When something is synchronous, it occurs in time or at the same time with something else.

In synchronous, you see syn- meaning "together," and -chron- meaning "time." If things such as swimming moves are synchronous, they are said to be in sync. Jewel thieves and undercover operatives synchronize their watches so that the team ensures synchronous actions. If the police question you about a crime and your alibi is that you were out dancing, it means that the occurrences of the crime and your dance were synchronous, so you could not be the perpetrator.

Definitions of synchronous
  1. adjective
    occurring or existing at the same time or having the same period or phase
    “"recovery was synchronous with therapy"- Jour.A.M.A.”
    “a synchronous set of clocks”
    “the synchronous action of a bird's wings in flight”
    synchronous oscillations”
    synonyms: synchronal, synchronic
    synchronic
    concerned with phenomena (especially language) at a particular period without considering historical antecedents
    coetaneous, coeval, contemporaneous
    of the same period
    coexistent, coexisting
    existing at the same time
    co-occurrent, coincident, coincidental, coinciding, concurrent, cooccurring, simultaneous
    occurring or operating at the same time
    contemporaneous, contemporary
    occurring in the same period of time
    parallel
    of or relating to the simultaneous performance of multiple operations
    synchronic
    (of taxa) occurring in the same period of geological time
    synchronised, synchronized
    operating in unison
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    Antonyms:
    asynchronous
    not synchronous; not occurring or existing at the same time or having the same period or phase
    allochronic
    (of taxa) occurring in different geologic times
    anachronic, anachronistic, anachronous
    chronologically misplaced
    nonsynchronous, unsynchronised, unsynchronized, unsynchronous
    not occurring together
    in series, nonparallel, serial
    of or relating to the sequential performance of multiple operations
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  2. adjective
    (digital communication) pertaining to a transmission technique that requires a common clock signal (a timing reference) between the communicating devices in order to coordinate their transmissions
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    Antonyms:
    asynchronous
    (digital communication) pertaining to a transmission technique that does not require a common clock between the communicating devices; timing signals are derived from special characters in the data stream itself
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