Compounds of 勢い

• 勢い
  (adv,n) (1) force
  vigor
  vigour
  energy
  spirit
  life
  (2) influence
  authority
  power
  might
  (3) impetus
  momentum
  course (of events)
  (n-adv) (4) naturally
  necessarily
  (P)
• 勢いづく
  (v5k,vi) to gather strength
  to take heart
• 勢い込む
  (v5m,vi) to brace oneself
• 勢い付く
  (v5k,vi) to gather strength
  to take heart
• 勢い良く
  (adv) vigorously
• 自然の勢い
  (n) force of circumstances
• 怒濤の勢い
  (exp) with great vigour
  in leaps and bounds
  lit: with the force of surging waves
• 破竹の勢い
  (exp) (id) with great vigour (from the way splitting bamboo goes all down the stick)
• 勢いを振るう
  (exp) to wield power
  to exercise authority
• 獅子奮迅の勢い
  (n) irresistible force
• 飛ぶ鳥も落とす勢い
  (exp) (id) great vigor
  tremendous energy
  lit: forceful enough to knock down birds in flight
• 飛ぶ鳥を落とす勢い
  (exp) (id) great vigor
  tremendous energy
  lit: forceful enough to knock down birds in flight