tether

Short definition from Wiktionary

Noun

1. 1
   A rope, cable etc. that holds something in place whilst allowing some movement.
2. 2
   The limit of one's abilities, resources, patience, etc.
3. 3
   An attachment to a place, time, entity or person.
4. 4
   A strong rope or line that connects a sailor's safety harness to the boat's jackstay.

Verb

1. 1
   To restrict with, or as if with, a tether.
2. 2
   To connect to something else.
3. 3
   To connect to something else: To connect (a smartphone) to a personal computer in order to give the computer access to the phone's Internet connection.

Numeral

1. 1
   Alternative form of tethera.