Interpretation
5.  In this Part unless the context otherwise requires —
“Commissioner” means the Commissioner for Labour, and includes any Deputy or Assistant Commissioner for Labour;
“essential service” means any service, business, trade, undertaking, manufacture or calling included in Part I of the First Schedule;
“lock-out” means the 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 in consequence of a trade dispute, done with a view to compelling those persons, or to aid another employer in compelling persons employed by him, to accept terms or conditions of or affecting employment;
“public health service” means —
(a)any hospital, clinic, sanatorium, or other institution for the care of the sick; and
(b)any system of public conservancy or sanitation;
“strike” means the cessation of work by a body of persons employed in any essential service acting in combination, or a concerted refusal or a refusal under a common understanding of a number of persons who are or who have been so employed to continue to work or to accept employment;
“workman” means any person who has entered into or works under a contract with an employer, whether the contract be for manual labour, clerical work or otherwise, be expressed or implied, oral or in writing, and whether it be a contract of service or of apprenticeship or a contract personally to execute any work, and includes, for the purposes of any proceedings under this Part in relation to a trade dispute, a workman discharged during that dispute.