1. be/seem/become/remain ~
make sth ~
consider sth ~
regard sth as~/see sth as~/treat sth as~
completely/ exactly ~
almost/largely/more or less/roughly/ virtually ~ with
2. 说到圣诞节，人们常常会想到充满节日氛围的装饰、礼物和圣诞老人。
Speaking of Christmas, people are tend to consider it as synonymous with ?decoration, gifts and Santa.
Christmas has always been synonymous with festive decorations, gifts and Santa Claus.
应用：
对以前的我来说，《经济学人》几乎就跟天书一样。
The Economist was almost synonymous with gobbledygook for me few weeks ago.
