duàn​xiàn

to break a string

断线 斷線 duàn//xiàn
to break a string verb + noun
To have a string break, such as on a kite, musical instrument, or sewing machine.
to be disconnected verb + noun
To lose an electrical or digital connection, specifically for a telephone call or internet access.

I thought I was disconnected.

to lose contact
To lose touch with someone or break off a relationship
to be discontinued
To have a tradition, undertaking, or lineage be broken or interrupted

Frequency

Written text
1.05 per million

Sources

Frequency data
BCC Corpus (BLCU)