think: implies the entrance of an idea into one's mind with OR without deliberate consideration or reflection: I just ~ of a good story.      


conceive: suggest the forming, or bringing forth and usually developing of an idea, plan, or design: ~d of a plan to rescue the hostage.


imagine: stresses a visualization: ~ a permanently operating space station.  (visualize可视化、想象to form a mental image of, to imagine, 例如it is not easy to visualize the future看见未来不容易)


fancy: stresses an imagining often unrestrained by factual reality but spurred by desires: ~ied himself a super athlete.   (spur马刺,形容激励,如fear was the spur that kept me going是恐惧激励我继续往前走)


realize: suggests a grasping of the significance of what is vividly conceived or imagined: ~ the enormity of the task ahead.


envisage, envision: implies a conceiving or imagining that is especially clear or detailed: ~ a totally computerized operation; ~ a world free of hunger and disease.


think想到: 只是产生想法,无论是否反复考虑，conceive构思孕育: 表示形成提出并发展某个想法计划设计，表示完整, imagine想象: 强调可视化(visualize可视化: 形成思维图像to form a mental image)，好像可以看见，fancy幻想: 不受现实约束, 发自个人意愿欲望的想象，realize认识到: 表示抓住了(grasp)所构思想象的意义(significance意义,重要性)，envisage, envision设想: 表示构思想象得份外清晰详细。


记忆方法: 1）首字母TCIFRE想成To Create FIRE: 创造火花<==想到好主意


2）想到的意思是形成想法mean to form an idea of something.