From BiblePortal Wikipedia

American Tract Society Bible Dictionary [1]

A Christian woman of Cenchrea, the eastern port of Corinth, bearer of the epistle of Paul to the Romans, in which he commends her to their confidence and Christian love. She appears to have been a deaconess of the church, and to have had both the means and the disposition to do good abundantly. Paul says, "she hath been a succorer of many, and of me also,"  Romans 16   1-2 . One who succors a faithful servant of Christ may thereby aid in the accomplishment of immeasurable good. The Holy Spirit presents the character and works of Phebe as worthy of all imitation. Such mothers in Israel will be held in everlasting remembrance.

Watson's Biblical & Theological Dictionary [2]

a deaconess of the port of Corinth, called Cenchrea. St. Paul had a particular esteem for this holy woman; and Theodoret thinks the Apostle lodged at her house for some time, while he continued in or near Corinth.

It is thought she carried the epistle to Rome, which he wrote to the church of that city, in which she is so highly commended,  Romans 16:1-2 . It is thought that, in quality of deaconess, she was employed by the church in some ministrations suitable to her sex and condition; as to visit and instruct the Christian women, and attend them in their sickness, and distribute alms to them in their necessities.

Morrish Bible Dictionary [3]

A christian woman commended by the apostle to the saints at Rome as 'a servant of the church.' He desired that they should assist her in anything in which she needed their aid. She had been a succourer of many and of Paul. The word for 'servant' is διάκονος,'deaconess,' but may not imply any official service.  Romans 16:1 .

Smith's Bible Dictionary [4]

Phe'be. See Phoebe .

Hawker's Poor Man's Concordance And Dictionary [5]

A pious woman noticed by Paul. ( Romans 16:1)

Holman Bible Dictionary [6]

 Romans 16:1-2

Easton's Bible Dictionary [7]

 Romans 16:1,2

Webster's Dictionary [8]

(n.) See Phoebe.

Kitto's Popular Cyclopedia of Biblial Literature [9]

Phe´be [PHOEBE]