1. At the same time.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• synchroniously,
• aynchronously,
• zynchronously,
• xynchronously,
• dynchronously,
• eynchronously,
• wynchronously,
• stnchronously,
• sgnchronously,
• shnchronously,
• sunchronously,
• sychronously,
• syncronously,
• synchronusly,
• synchronosly,
• synchonoscope,
• synchronasly,
• sychronusly,
• syncronusly,
• synchrously

• synchronic,
• synchronism,
• synchronisation,
• synchronising,
• synchronicity,
• synchrotron,
• synchronise,
• synchronization,
• synchroneity,
• synchronised,
• synchronal,
• synchronous,
• synchroniser,
• synchronized,
• synchronize,
• synchroflash,
• synchronoscoppe,
• syncarpous,
• synchromesh,
• synchronizer,
• synchronoscope,
• synchronizing.

The adjective form of the word "synchronously" is "synchronous".

The plural form of the word "synchronously" is "synchronously" as it is an adverb and does not typically change in its plural form.

The singular form of the word "synchronously" is "synchronously".