30
The point down triangle shape, symbolizes indication (「指 示｣を意味して、上から指す三角記号)
. . . .
( If you don't understand how to read this page, see here first )

the hand-shape-sign:
the extended three fingers {middle, ring, pinkie}
to symbolize the triangle, facing the palm side to the reader
(この指３本で三角形を象り、ひらがわを読者に向けて)

the hand-movement-sign
quick turn and return of the wrist with the other signed hand
(重ね相手の文字の手で手首をすばやく回わしてもどす)

name: u sound of pull (ウ)

ASCII: w (similar mark as the phonetic function)

phonetic value: [ a basic vowel: close back unrounded ]

definition (single):

(function): the indicator of accusative case of a verb... see here for more details.
(続く文字がＤ動詞の対象になる格であることを示す文法記号)

main images in base overlays:

1) Related to showing something/indication/instruction (指示、表示に関連)
Included symbols for computing terms (コンピュータ用語の簡潔な記号を含む)
2) Special usage for the EL grammatical term related to the function of single #30 symbol
(地球語で文法記号としての#30に関係する文法用語の構成)
3) Related to the triangle shape of #30, not to its meaning. (記号の三角形に関連)

examples of base overlay:

Related to showing something/indication/instruction(指示、表示に関連)

{01(dot),30}: scale (of a measurement) (めもり)
{{01,30},47(vesel)}: measure-cup
{03(line/needle),30}: an indicator needle to indicate of the tool like a compass and a clock (指針)
{33(to make abstract symbol),30}: indication, point out, show (指示、表示)
{09(intangible matter),30}: topic (題目)
{30,57(wonder)}: which (どちら)
{10(place),30,57}: which place (どちらの場所)
{36(time),30,57}: which time (どちらのとき)
{65(person),30,57}: which person (どちらの人)
{13(same),30}: the same score (同点)
{12(friction),30}: fuzzy (漠然)
{15 recognition,30}: information(情報)
{{15,30}information, {15,61}new}: news
{, 14go through}: message (伝言)
{15,30,21(go)}: dispatch (of a message), send (v. with #d) (送信)
{15,30,47(accepted)}: reception (of a message), receive (v. with gd) (受信)
{10(place),{15,30}}: address (general/as email address) (住所)
{{10,14}{15,30}}: street/road sign (道路標識)
{15,30,33systematical abstract concept}: cord (符合)
{15,30,48(cover)}: envelope (封筒)
{15,30,48,21(heading)}: (a) letter (手紙)
{15,30,{44,52}(fire)}: signal fire (のろし)
: guidance/guide (v. with gd) (案内)
{{14,30}, 10place}: a place to guide as an information center (案内所)
{{15,30}information,46,28}: cards for inform something, such as medical charts/menu
(カルテ､メニューのように情報を示すカード)
{58being able,15 recognition,30)}: approval (承認)
: translation, translate (v. with gd) ... (These translate, interpret characters are formed by Joseph Bayerl)
{{30,14,23},09}: translation (翻訳)
{{30,14,23},38}: machine translation (機械訳)
{{30,14,23},65}: translator (翻訳家)
{15,30,45,23: interpret (通訳)
{15,30,45,23,65}: interpreter (通訳家)

{11,30(indication)}: designation(指定・指名)
{21(heading),30}:  goal (目標)
{22(origin),30}: principle (主義)
{23(change),30}: signal (信号)
{24(certain),30}: proof/certification (証明)
{30,68(heart)}: a will(意志)
{{30,68},51(power)}: vitality,(気力)
{07(much),30,51,68}: vigorous (気力溢れる )
{08(less),30,51,68}: lose one's vigor (vi.) (弱虫)
{55seek,{68,30}}: ambition (大志)

{36,30( indicating )}: (particular and certain) indicated time, also 'o'clock' as the standard.
Now 1-12 o'clock A.M. and 1-12 P.M. are used, but if the standard is changed, the definition
of the base overlay will follow it too. (時刻)

{37,30(show),09(affair)}: natural phenomenon (天然現象)
{30,38(make)}: instruction, instruct (vt. with ge )
{30,49(nature/quality)}: characteristic, feature, peculiarity (特徴)
{30,50(tangible thing)}: material evidence (物証)
{51(force),30}: coercion, coercive, impose (v. with gd) (威圧)
{54(existence),30}: identification( certificate) (身分証明)
{54,30}{46,28} or {54,30,46,28}: ID card
{55(request),30}: applying (to show that you want to ..) (申請)
{{55,30(indicate}(to apply),28(sheet)}: application form/card (申請書)
{56(action), 30}: demonstration (デモ)
{58(possible),30}: license/license
{60(real),30}: verification/inspection, verify/inspect (v. with gd) (検証)
{61(front),30}: appeal (n./v. with gd) (訴え)
{64(very),30}: enforced (v. enforce with ge) (強化)
{67(life),30}: symptom, phenomena of a living body (症状)

For especially computing usage with similar meanings to above(コンピュータ用の記号)

{10(place),30}: the indicated place (指示場所)
{44(open),30}: to open file (ファイルを開く)
{43(close),30}: to close file (ファイルを閉じる)
{25( + ),30}: add indications (表示増)
{04( - ),30}: reduce indications (表示減)
{07(large),30}: larger indication/icon)
{08(small),30}: smaller indication/icon )
{19(in),30}: zoom in (vt. with ge)
{20(out),30}: zoom out (vt. with ge )
{05(not), 30}: cancellation of instruction
{16(division),30}: segmentation of view (表示分割)
{28(sheet/surface),30}: screen (画面)
{28,30,07}: enlargement of the screen/canvas (画面の拡大)
{28,30,08}: reduction of the screen/canvas (画面の縮小)
{28,30,50(tool)}: monitor (visual display unit)
{15,30,28(sheet)}: file( for computing usage) (ファイル)
{15,30,{13,28}(for the shape): table( chart) (表)
{15,30,28,03(line),23(change)}: line chart (線グラフ)
{15,30,{33,07,08}(ratio; also by the shape)}: pie chart (円グラフ)
{30,31(shape)}: mark, icon, seal, signature (印章、マーク、サイン)
{46(function),30}: to show the function (機能表示)
{45(relation),30}: to show with 'thread' (スレッドの表示)

Special usage for the EL grammatical word related to the function of #30 as its single form
(地球語文法用)
{30(grammatical symbol),34}: the 'an accusative case' of a verb, influenced
by the action of the subject in the EL grammar. e.g. 'it' of 'He saw it'
(The person who did the action of the verb is the subject)
(「～を見る」など、Ｄ動詞の対象になる格)

Related to the shape of #30, not to its meaning (#30の形に関連)
{ga (to change the meaning of the other base overlay),30,31(shape)}: triangle (三角形)

As a part of a picture-like symbol
 `1-wW ` {02,04,30,31} as a picture-like symbol: for any kinds of shining stars in the night sky including the sun level stars, planets and galaxy.