| 1 | The atomic icebreaker reeved the icebergs. | |
| 2 | I heard that the government sends some icebreakers to settle the problem. | |
| 3 | A steam-powered icebreaker for the transportation of the trains on Lake Baikal, built in 1896. | |
| 4 | With the increase in freight turnover there will be a larger number of ships that will need icebreaker assistance. | |
| 5 | The breakdown will keep the icebreaker from supporting Operation Deep Freeze in the resupply of McMurdo Station, Antarctica. |