बल —

बल/बलों  m) strength (fuerza), power; army (ejército); potency; vigour, vitality; emphasis; stress

बाल  m) hair; young one, child, boy

बलवान  a) strong, powerful

घुटनों के बल चलना  v) move on all fours [on your hands and knees]

घुटना  m) knee

सुरक्षाबल  security forces

के बल पर  by virtue of; on the strength of (sobre la base de, basado en)