un mar Learn Unstarted Literal Breakdown Recording English Spanish Learn a (masculine) un Learn sea mar Learn Summary The Spanish translation for “a sea” is un mar. The Spanish, un mar, can be broken down into 2 parts:"a (masculine)" (un) and "sea" (mar). Practice Lesson "a sea" Practice (3) Lesson Learn Lesson words a (masculine), sea etc. View all lesson words Lesson phrases a sea etc. View all lesson phrases Themed Courses Nature 1 Places 1 At the seaside 1 Acknowledgements Audio Google text-to-speech