maintain

Maintain by writing regular records.

“maintain a record”

Maintain for use and service.

Have and exercise.

State categorically.

Keep in safety and protect from harm, decay, loss, or destruction.

Support against an opponent.

State or assert.

“He maintained his innocence”

Stick to correctly or closely.

Supply with necessities and support.

Cause to continue in a certain state, position, or activity; e.g., `keep clean'.