Questions & Answers about Bu ciddi bir suç.
- Bu = this
- ciddi = serious
- bir = a / an (sometimes also one)
- suç = crime, offense, sometimes fault/blame depending on context
So the sentence means This is a serious crime.
In Turkish, the verb to be is often not stated in simple present-tense sentences like this, especially in the third person.
So Turkish can say:
- Bu ciddi bir suç. = This is a serious crime.
without a separate word for is.
A more formal or emphatic version is:
- Bu ciddi bir suçtur.
That -tur ending adds a more formal is sense, but in everyday speech it is usually omitted.