Definition of sliding in English:
 sliding
adjective ˈslʌɪdɪŋˈslaɪdɪŋ
1Able to move smoothly along a surface.
 the tank should have a sliding glass cover
- 1.1 Moving smoothly, quickly, or unobtrusively.
 - 1.2 Changing gradually to a worse condition or lower level.
 - 1.3 Able to be adjusted or adapted.
 he was charging a sliding fee
 
  Definition of sliding in US English:
 sliding
adjectiveˈslaɪdɪŋˈslīdiNG
1Able to move smoothly along a surface.
 the tank should have a sliding glass cover
- 1.1 Moving smoothly, quickly, or unobtrusively.
 - 1.2 Changing gradually to a worse condition or lower level.
 - 1.3 Able to be adjusted or adapted.
 he was charging a sliding fee