[æbuː saɪjæf]

noun.

1. Abu-Sayyaf (n.) - An Islamic separatist group based in the Philippines that is known for its extremist and terrorist activities.

用法：Abu-Sayyaf is typically used as a proper noun to refer to the specific group. It can also be used as an adjective to describe their actions or beliefs, such as "Abu-Sayyaf militants" or "Abu-Sayyaf ideology."

例句：

1. The government has been working to dismantle Abu-Sayyaf's operations in the country.

一直在努力瓦解阿布萨亚夫在该国的活动。

2. The Abu-Sayyaf group has claimed responsibility for the recent bombing in the city.

阿布萨亚夫组织声称对最近发生在该市的爆炸负责。

同义词及用法：

1. Moro National Liberation Front (MNLF) - Another Islamic separatist group in the Philippines that has engaged in armed conflict with the government.

2. Bangsamoro Islamic Freedom Fighters (BIFF) - A splinter group of MNLF that also advocates for an independent Muslim state.

3. Jemaah Islamiyah (JI) - A Southeast Asian militant organization with ties to Al-Qaeda, responsible for several terrorist attacks including the Bali bombings in 2002.

4. insurgency - A rebellion or uprising against a government or authority, often involving armed conflict.

5. terrorism - The use of violence and intimidation in pursuit of political aims.

编辑总结：

Abu-Sayyaf is a notorious terrorist organization that has caused chaos and destruction in the Philippines through its extremist activities. It is important for individuals and governments to be aware of their actions and to work towards dismantling their operations to ensure the safety and security of the country. The use of proper nouns and adjectives can accurately describe the group and their beliefs, while synonyms such as insurgency and terrorism can also be used to refer to similar actions or groups.