Synonyms for Memory (same or very similar meaning)
WordNet sense 1 (the cognitive processes whereby past experience is remembered):
remembering
WordNet sense 2 (the power of retaining and recalling past experience):
retention, retentiveness, retentivity
WordNet sense 3 (an electronic memory device):
storage, store, computer memory, computer storage, memory board
From the ODE community, based on WordNet
add/edit