Air 
To dream of cold air symbolizes problems in your home life and difficulties with finances. You could be close to detaching yourself from the real world.
To dream about breathing hot air symbolizes malevolent forces surrounding you.
Hot
To dream that you are hot suggests that you might be lusting for someone. To dream of hotness may also mean a dangerous endeavor and feelings of attractiveness.
Hotel
To dream about hotels refers to a new unusual state of mind or a shift in your usual paradigm. It can be an attempt to break away from your daily routine by going for a lighter, less serious approach to matters at hand.
Ballot
To dream of a ballot suggests uncertainty around a very specific issue in your waking life. Possibly you are putting too much investment into other's opinion of your idea. Dreaming of a ballot paper is helping you become aware that you are responsible for your own decisions and not only is it unfair to rely on someone else to make your decisions for you, it is also the less personally fulfilling way to go. Weighing up the pros and cons may be quite helpful but following your heart is quite likely the best way to go.
Airbag
Dreaming about an air bag symbolizes the presence of protection and safety at the moment in your waking life.
Alternatively, if you dream about seeing the airbag deploy in a vehicle, it is a sign of warning that you're about to get hit with a major setback if you continue the current pace in your life.
Airport
To dream of an airport with high traffic means that you wish to be free, have ambitious goals, or possess elevated moral standings. This dream signals that you are ready for a new beginning. You have an idea that will take root and be successful. A new companion or career move could be coming.
To dream of an empty airport means that your trip or other plans could be altered or put on hold.
Hot Dog
To dream of a hot dog indicates masculinity, sexual energy, and vitality.
Hot Tub
Imagine sitting in a hot tub with steam coming out from the water beneath you. This evokes relaxation.
To dream about hot tub offers you a way out of your daily routine and stress. It brings instantaneous pleasure that belongs only to you. It can also reflect the hidden aspects of your unconscious.
Balloon
To dream of balloons represents deflating aspirations and difficulty in life. Something in your life could spiral downhill. Balloons are also indicative of an overinflated ego. Black balloons signify depression, especially if they are falling to earth.
To dream of a rising balloon means that situations in your life are working to elevate above you. This is your inner yearning to break free of it. Balloons within dreams also signify gatherings and joyous parties. You should revisit your inner youth.
To dream about rising in a hot air balloon indicates an unlucky voyage.
If a balloon pops in your dream, this represents an aspiration that has not yet been realized. This could also be indicative of pressure in your life that is becoming unbearable.
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.
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