Definitions
verb
maintain by writing regular records
“maintain a record”
verb
maintain for use and service
verb
keep in safety and protect from harm, decay, loss, or destruction
verb
support against an opponent
verb
state or assert
“He maintained his innocence”
verb
stick to correctly or closely
verb
supply with necessities and support
verb
cause to continue in a certain state, position, or activity; e.g., `keep clean'