What is the difference between strike and lockout under Industrial Dispute Act, 1947?

As per Industrial Disputes Act, 1947- "Strike" means a cessation of work by a body of persons employed in any industry acting in combination or a concerted refusal under a common understanding of any number of persons who are or have been so employed, to continue to work or to accept employment". Mere stoppage of work does not come within the meaning of strike unless it can be shown that such stoppage of work was a concerted action for the enforcement of an industrial demand. "Lockout" means the temporary closing of a place of employment, or the suspension of work, or the refusal by an employer to continue to employ any number of persons employed by him. Lockout is the antithesis of strike. It is a weapon of the employer while strike is that of the workers. Just as a strike is a weapon in the hands of the workers for enforcing their industrial demands, lockout is a weapon available to the employer to force the employees to see his point of view and to accept his demands.