1. Fog is the sailor's deadly enemy.

2. He has become my deadly enemy.

3. Her tranquil life was threatened by the coming of a man whom she regarded as her deadly enemy.

4. In 1990, British politician Lord Hailsham wrote that “the most deadly enemy of morality is not atheism, agnosticism, materialism, greed nor any other of the accepted causes.

5. Courageousness on the face of deadly enemy assault merits equal consideration and the declaration of 'martyrdom' is but a noble way to respect and honour the fallen heroes.

6. The result was that in the end the Valiant Soldier, of the Christian army, was distinguished by no peculiarity of Accoutrement from the Turkish Knight; and what was worse, on a casual view Saint George himself might be mistaken for his deadly enemy, the Saracen.