who are apostles?

Matthew 10:2-5 “Now the names of the twelve apostles are these: The first, Simon, who is called Peter, and Andrew his brother; and James the son of Zebedee, and John his brother; Philip and Bartholomew; Thomas and Matthew the tax-gatherer; James the son of Alphaeus, and Thaddaeus; Simon the Cananaean, and Judas Iscariot, the one who betrayed Him. These twelve Jesus sent out after instructing them…”
Acts 1:24-26 “And they prayed and said, You, Lord, who knows the hearts of all men, show which one of these two You have chosen to occupy this ministry and apostleship from which Judas turned aside to go to his own place. And they drew lots for them, and the lot fell to Matthias; and he was numbered among the eleven apostles.”
Acts 14:14-15 “Now, on hearing this, the apostles Barnabas and Paul, tearing their garments, spring out into the throng, crying”
Romans 1:1 “Paul, a bond-servant of Christ Jesus, called an apostle, set apart for the gospel of God…”
Romans 16:7 “Greet Andronicus and Junias, my kinsmen, and my fellow-prisoners, who are outstanding among the apostles, who also were in Christ before me.”
II Corinthians 11:12-13 “But what I am doing, I will continue to do, that I may cut off opportunity from those who desire an opportunity to be regarded just as we are in the matter about which they boasting. For such men are false apostles, deceitful workers, disguising themselves as apostles of Christ.”
Galatians 1:19 “But I did not see any other of the apostles except James the Lord's brother.”
Hebrews 3:1 “Therefore, holy brethren, partakers of a heavenly calling, consider Jesus, the apostle and High Priest of our confession.”
Revelation 2:2 “I know your deeds and your toil and perseverance, and that you cannot endure evil men, and you put to the test those who call themselves apostles, and they are not, and you found them to be false.”