The acronym DEPD stands for "Depository." When looking for synonyms for this word, some popular options include "repository," "vault," "safe," and "storehouse." These words all convey the idea of a secure, designated space for storage and safekeeping. Other possibilities include "warehouse," "locker," "facility," and "stockroom." Each of these words can help to provide clarity and variety in your writing by presenting different shades of meaning within the context of storage and organization. Ultimately, the best synonym will depend on the specific context and tone of your writing, but the words listed above are a good starting point.