The phrase "tighten ties" is correct and usable in written English.
It can be used to express the idea of strengthening and/or increasing the closeness of a relationship. For example, "The two clubs decided to tighten ties by forming a joint venture."
He also plans to meet next week with Russian President Vladimir Putin, seeking to tighten ties with a traditional rival.
"We had a year and a half making Karzai convinced that he has to tighten ties with these corrupt people in order to survive," said Ronald E. Neumann, the American ambassador to Kabul from 2005 to 2007.
Friday's effort to reach out to Washington is also in line with the conservative stance of Japan's prime minister, Yoshihiko Noda, who has sought to tighten ties with the United States.
WASHINGTON — A day after meeting with President Obama, Prime Minister Benjamin Netanyahu of Israel on Tuesday made an uncharacteristically enthusiastic pitch for a peace accord with the Palestinians, saying it would enable Israel to tighten ties with its Arab neighbors and "catapult the region forward" on issues like health, energy and education.
Obermann plans to tighten ties between the company's T-Com and T-Mobile units to allow Deutsche Telekom to compete more effectively in the German market, where it is losing ground.
For all his history with China, Mr. Bader was the architect of a policy that has stressed tightening ties with all the countries around it.
But Mr. Levy said he balked at tightening ties between Cato and the Kochs' advocacy groups, expressing concern that the brothers might try to select Cato's research topics and the timing of its studies.
And given the way Chinese companies are answerable to the government, Huawei's apparent connections with the Chinese military and its cyber operations, and the tightening ties between private industry and the state, this seems a legitimate consideration.
"Néstor Kirchner took some politically risky decisions, such as breaking with the IMF, putting effective policies into place for the most vulnerable, distancing Argentina slightly from the western nations and tightening ties with its Latin American neighbours," says Tokatlian.
After you have your drawstrings properly tightened, tie them in a double knot.
If Facebook wants to continue fighting Google, it's in its interest to tighten its ties with RockMelt and further establish itself as the lens through which users view the Web.
