ROW OF SEATS

• row [countable]
• 1 a line of things or people next to each other[↪ column]
• row of
• a row of houses
• rows of trees
• in a row
• The children were asked to stand in a row.
• row upon row (=many rows) of shelves stacked with books
• 2 a line of seats in a theatre or cinema:
• We sat in the front row.
• 3

   in a row

  happening a number of times, one after the other[= consecutively]
• 4 nights/3 weeks etc in a row
• She's been out four nights in a row.
• I've beaten her three times in a row.
• 4 used in the name of some roads:
• 22 Church Row
• 5

   a hard/tough row to hoe

  used to say that a particular situation is difficult

Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.