1214440 jmdict A [id=2201859]
緩める[ichi1]；弛める[rK]
ゆるめる[ichi1]
[1][v1,vt]
  to loosen; to slacken
  [ant=1436570・締める[1]]
[2][v1,vt]
  to relax (attention, efforts, etc.); to let down (one's guard); to relieve (tension)
[3][v1,vt]
  to relax (a rule); to ease (e.g. restrictions); to loosen (control)
[4][v1,vt]
  to reduce (speed); to slow down; to ease up
[5][v1,vt]
  to make more gradual (of a slope)