Wheel : Could mean any of the following:
1. Associated with  cyclic phases or pattern.
2. Events coming full circle.
3. A powerful person.

Whirlwind, tornado in a dream may represent emotional turmoil.

Wind : Associated with hidden, unseen influences.

Wizard : 1. Associated with manipulation of circumstances.
2. Associated with realisation of one’s dream.

Walk in dreams: Trying to understand. The speed and pace of the walk denote the speed and pace of learning  as well.

Wallet, purse : Related to financial issues. Losing it denotes a fear of  financial loss.

Wall, boundary in dreams : Associated with obstacle and barrier. Being stuck and not progressing.

Water in dreams represents emotion. Lots of water around could mean being overwhelmed by emotions.

Waterfall : 1.An emotional release.
2. If deep into the base, could mean being overcomed by emotions.

Weapon, gun, rifle : 1. Represents anger, protection. If the weapon fails to fire or bullets are not of the correct type, it denotes feeling powerless against some events or person. Being shot at denotes confrontational aggression being directed at the dreamer.
2. Symbolises the male sexual organ. Weapon malfunction may indicate fears related to sexual disease or impotence