Tanker 
A tanker in a dream represents danger and pent up violence. A tanker which explodes in a dream relieves anger that you have kept held back in your waking life.
Alternatively, a tanker may represent your perception of someone's anger with you.
Mariner
To dream that you are a mariner suggests that you are about to embark on an interesting and educational trip to a distant land.
Traffic
To dream that you are in traffic symbolizes sore spots in life when you felt frustrated and hopeless. You feel that your life is in a rut.
Vessels
To dream of vessels is a representation of the physical labor you perform in your waking life.
Admiral
To dream of an admiral indicates a desire to command or lead a group of people, either socially or in a professional setting through a difficult or trying task. An important aspect of this desire is the need to be respected, recognized and awarded for your leadership and courage.
Airplane
To see an airplane in your dream signifies your ability to solve problems, conquer hardships, and elevate yourself to a higher position of importance.
To dream that you transfer planes represents a significant change that is happening to you or will happen in the future. This alteration will lead you towards different objectives and goals than you were previously aiming for. You will receive respect and importance.
To dream that a plane crashes indicates that you need to reassess your strategies in order to achieve your objectives. Your current methods are not proving successful. Your targets are unrealistic and unattainable. In addition, the crashing airplane may reflect doubt that you will be able to reach your ambitions. You are hesitant and unsure of your ability to achieve success.
To dream that an airplane is hijacked indicates that bothersome emotions still linger from your childhood, youth, or earlier years.
Submarine
To dream of a submarine suggests that you are discovering your inner spirituality and personality. You are reluctant to express some of your feelings to others. This dream may also be implying that you should approach a situation via an alternate route. If not, then you may want to change your views on an issue. You should carefully assess an issue before making a decision.
Dormitory
To dream that you are in a dormitory suggests the level to which you consider wisdom and education in your life. You could feel that you learn in every aspect of life. If you are residing in a dormitory at present, then you may simply be dreaming about your current situation.
Greyhound
To dream about a greyhound represents serendipity, joyous gifts, and friendship.
Man Of War
To dream of a man of war implies that you will be separating yourself from your close peers.
To see a man of war sailing upon rough seas indicates that outside influences will cause you discomfort and hardship.