1. countries, groups, or people who have agreed to work together, especially in war or politics
Usage: plural of ally
2. people who support a particular cause or group
Usage: plural of ally

1. third person singular present of ally; joins or unites with another for a common purpose
Usage: present tense form

Examples

• The United States and Britain were allies during World War II.
• France allies itself with other European nations on trade issues.
• Environmental groups found allies among local residents.
• The two companies became allies in developing new technology.
• She allies with anyone who supports education reform.
• The country seeks allies in its fight against terrorism.
• Teachers need allies among parents to improve schools.