say it: AL-uh-moh
alamo is a noun meaning "a siege and massacre at a mission in San Antonio in 1836; Mexican forces under Santa Anna besieged and massacred American rebels who were fighting to make Texas independent of Mexico". It carries one recorded sense.
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for alamo come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.