OAK: 

To dream of an oak tree laden with acorns signifies increased income and a chance for advancement. A forest of oaks is a sign of much prosperity. See Forest

OAR:

Rowing a boat means sacrifice and disappointment for the dreamer. To lose an oar warns of useless effort to please others.

OATMEAL:

If you dream that you are cooking oatmeal, it denotes the wish to rule others. To eat oatmeal indicates many pleasant hours with friends.

OATS:

To dream of a horse eating oats mean that any project that you have started should be finished.

OCEAN:

To dream of a calm ocean augurs good fortune. A stormy ocean, warning of danger or enmity. To be on shipboard on the ocean, a great desire to travel far away. The ocean is also considered a symbol of death, a desire to be reborn, or a chance to start over again.

OFFICE:

To dream that you are working in an office indicates a need for closer attention to money matters. To hold an office, by election, foretells high aspirations and many problems.

ONIONS:

To see onions growing in a field indicates opposition to present plans. To be cutting or peeling onions, a need to work harder to avoid defeat or frustration.

OPERA:

To dream that you attend an opera signifies a time to improve or augment any business holdings or personal properties. See Actor.

ORANGES:

If a girl eats oranges in her dream she may forfeit the love of her fiance. For a man, it means unexpected complications with his career. To see many oranges on a tree, good health.

ORCHARD:

To dream of an orchard of blossoming trees presages the fulfillment of love. An orchard of ripe fruit, a happy home and an ample income. An unproductive orchard, rough road to achievement.

ORCHESTRA:

To hear orchestral music indicates much popularity for the dreamer. To be playing in the orchestra, advancement in your occupation.

ORGAN:

If you dream of playing an organ it denotes social honor and unusual awards. To hear organ music augurs many friends. If the organ is in a church warning of a separation or death of a loved one.

OVERCOAT: See Coat

OWL:

An owl in your dream presages gossip. To hear the hoot or screech of an owl omens ill health or bad news about a friend or relative.

OYSTERS:

A dream that you are eating oysters indicates a tremendous desire to attain money and social status.

OYSTER SHELLS:

Gathering oyster shells or any other shells on the beach means fleeting pleasures for the dreamer.