Strong's numbers

μόρφωσις (G3446)

mórphōsis

mor'-fo-sis

from μορφόω; formation, i.e. (by implication), appearance (semblance or (concretely) formula):--form.

*† μόρφωσις, -εως, ἡ (< μορφόω),

1. a forming, shaping (Theophr.).

2. form, outline, semblance: Ro 2:20; opp. to δύναμις, II Ti 3:5.†

From G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), in the public domain.

Shown in the King James Version (KJV), whichever translation you read in — it is the text these numbers are tagged against.

Romans 2:20
An instructor of the foolish, a teacher of babes, which hast the form of knowledge and of the truth in the law.
2 Timothy 3:5
Having a form of godliness, but denying the power thereof: from such turn away.