1. side by side and facing the same direction
2. up to date with or fully informed about something
Usage: typically used with ‘of’ or ‘with’

Examples

• The two runners stayed abreast throughout the race.
• The soldiers marched four abreast down the street.
• She tries to keep abreast of current events by reading the news daily.
• The manager stayed abreast of all developments in the project.
• The cars drove abreast on the wide highway.
• It’s important to stay abreast of changes in technology.
• The horses galloped abreast across the field.