فهم1 فَهِمَهُ, aor. ـَ inf. n. فَهْمٌ (S, Msb, K, &c.) and فَهَمٌ, (Msb, K,) which is the more chaste, (K,) but the former is a dial. var. [more] extensively  obtaining, or, as some say, it is a subst. used as an inf. n., (Msb,) and فَهَامِيَةٌ (S, K) and فَهَامَةٌ and فِهَامَةٌ, (K,) He understood it, or knew it with the mind; he apprehended its meaning; syn. عَقَلَهُ, (JK,) and عَلِمَهُ (S, Msb, K) and عَرَفَهُ بِالقَلْبِ. (K.) And فَهِمَ عَنْهُ [He understood what he (another) said]. (A in art. خرس; &c.) [See also فَهْمٌ below.] b2:  فَهُمَ, meaning He was, or became, such as is termed فَهِيم [i. e. one having much understanding], is like عَلُمَ, meaning “ he was, or became, such as is termed عَلِيم. ” (TA.) 2 فَهَّمَ see what next follows.4 أَفْهَمْتُهُ and ↓ فَهَّمْتُهُ, (S, Msb, K, TA,) inf. n. of the latter تَفْهِيمٌ, (S, TA,) I made him to understand, or know, a thing; (S, * Msb, * K, * TA;) syn. جَعَلْتُهُ يَفْهَمُهُ. (TA.) 5 تفهّمهُ He understood it, or knew it, (فَهِمَهُ,) one thing [or one particular thereof] after another; (S, K;) namely, speech, or language. (S.) b2: [And He endeavoured to understand it. (See its inf. n. as used in the former half of the second paragraph of art. دبر.)] And ↓ التَّفَاهُمُ signifies the same as التَّفَهُّمُ [app. as meaning The endeavouring to understand; or the affecting, or pretending, to understand]. (TA.) 6 تَفَاْهَمَ see what next precedes.7 انفهم, (K, TA,) as quasi-pass. of فَهَّمَهُ, inf. n. تَفْهِيمٌ, [or of أَفْهَمَهُ, i. e. as meaning He was made to understand, or know,] (TA,) is an incorrect word, (K, TA.) 10 اِسْتَفْهَمَنِى الشَّىْءَ He sought, or desired, of me, the understanding of the thing [i. e., that he might be made to understand it]; (S, * K, * TA;) syn. طَلَبَ مِنِّى فَهْمَهُ. (TA.) فَهْمٌ is an inf. n. of 1, (S, Msb, K, &c.,) or a subst. used as an inf. n.: (Msb:) [see 1, first sentence:] it is expl. as signifying The conception of the meaning from the word, or expression: or the quickness of the transition of the mind from extrinsic to other [i. e. intrinsic] things: or a condition of the mind whereby it ascertains what is approvable: or, as in the “ Ahkám ” of El-Ámidee, excellence of intelligence in respect of its readiness to apprehend quickly subjects of inquiry that present themselves to it. (TA.) فَهِمٌ, an epithet applied to a man, (S,) Quick of understanding; syn. سَرِيعُ الفَهْمِ. (K.) فَهِيمٌ Having much understanding; syn. كَثِيرُ الفَهْمِ; an intensive epithet; like ↓ فَهَّامَةٌ [except that the latter is doubly intensive]. (TA.) فَهَّامَةٌ: see what next precedes.فَاهِمٌ [act. part. n. of فَهِمَ; Understanding, or knowing, a thing].مَفْهُومٌ [pass. part. n. of فَهِمَ; Understood, or known. b2:  And hence, لَفْظٍ مَفْهُومٌ The acceptation of a word or an expression; i. e. the meaning, or sense, in which it is understood: see also مَعْنًى, in art. عنى].