Choir 
To dream that you are singing in a choir indicates that all aspects of your life are in perfect synchronicity. You are a strong believer in teamwork and never hesitate to offer your assistance.
Coach
To dream that you are a coach implies that you are unorganized and unsure of the direction to take. You should prioritize your objectives and gain more willpower.
Books
Books very prominently symbolize the quest for knowledge, wisdom, learning from others, and self-empowerment. Seeing a stack of books or being surrounded by books in your dream represents your thirst for knowledge and your desire to learn. Being surrounded by books of a specific genre can also say something about you and your waking life. For instance, being surrounded by fiction or romance books means you may wish to get lost in a story or romance. These types of books may also symbolize time to yourself and the classic idea of getting lost in a good book. Being surrounded by classic books and works of literature suggests you may have something to gain from those that are likely wiser than you such as teachers, parents, grandparents, or others. Classic works also serve as a reminder that great knowledge and talent is appreciated and remembered. This interpretation is important if your quest for knowledge and wisdom is driving your creative or imaginative work such as writing, music composition, dance, or other type of creative work.
Campus
To dream that you are on a campus implies that you are seeking more intellectual stimulation. You should join a class, study a different language, or read up on an interesting subject.
Locker
To dream of a locker suggests that there are things about you that no other people know about. Consider and take note of items that can be found inside the locker. For example, to dream of a school locker signify hidden feelings and thirst for knowledge.
To dream that you cannot open a locker or that you forgot the combination means that you are hesitant to take a stand in situations in which you are unsure about the outcome. In dreams where you cannot find your locker, this symbolizes your insecurities.
Boiler
To dream of a boiler means rising stress levels or losing your temper in waking life. Your subconscious mind is showing you a boiler in order to indicate your current emotional status.
Abscond
To dream of absconding, men should beware of deception from co-workers. For women, she should use care where she offers her attention.
Janitor
To dream of an idle janitor implies drawbacks in your business dealings.
To see a busy janitor means good news in the future.
Nervous
To dream that you are nervous of something connotes the prevalence of inferior feelings and timidity.
Canteen
To dream of a canteen implies that you prefer to select simple methods of mental satisfaction rather than expending too much energy.