Denshi Jisho — Online Japanese dictionary

ていじ successively; in order
Noun 
ていしん communications (e.g. post, tele.)
Common word, Noun 
ていげん successive diminution
Noun, Suru verb 
ていそう forwarding
Noun, Suru verb 
ていぞう gradual increase
Noun, Suru verb 
ていでん relay
Noun, Suru verb 
ていばい multiplication (e.g. of frequencies)
Noun, Suru verb 
互いに たがいに mutually; with each other; reciprocally; together
Common word, Adverb 
倍器 ていばいき multiplier (e.g. frequency)
Noun 
互いに素 たがいに 1: (Mathematical term) coprime; relatively prime;
2: disjoint
Na-adjective, No-adjective 
信省 ていしんしょう Ministry of Communications and Transportation (dissolved in 1949)
Noun, Obsolete term 
降変圧器 ていこうへんあつき step-down transformer
Noun 

You can also

Look up kanji details for 逓 たがいに.

Try a Yahoo Jisho search for 逓 たがいに .
Try a Goo Jisho search for 逓 たがいに .
Try a Google search for 逓 たがいに .