1. the act of interlocking or meshing

e.g. an interlocking of arms by the police held the crowd in check

Synonym: meshinterlockinterlocking

2. an open fabric of string or rope or wire woven together at regular intervals

Synonym: netnetworkmeshmeshwork

3. contact by fitting together

e.g. the engagement of the clutch
the meshing of gears

Synonym: engagementmeshinterlocking